| Tabla ordenada por nombre científico |
| Ord | Nombre Científico | Nombre Castellano | Nombre Inglés | Familia | ARG-Cod | Img |
| 1 | Accipiter bicolor | Esparvero variado | Bicolored Hawk | Accipitridae | ARG34022 | |
| 2 | Accipiter chilensis | Esparvero austral | Austral (Chilean) Hawk | Accipitridae | ARG34023 | |
| 3 | Accipiter poliogaster | Esparvero grande | Gray-bellied Hawk | Accipitridae | ARG34019 | |
| 4 | Accipiter striatus | Esparvero común | Sharp-shinned Hawk | Accipitridae | ARG34021 | |
| 5 | Accipiter superciliosus | Esparvero chico | Tiny Hawk | Accipitridae | ARG34020 | |
| 6 | Acridotheres cristatellus | Estornino crestado | Crested Myna | Sturnidae | ARG88001 | |
| 7 | Actitis macularius | Playero manchado | Spotted Sandpiper | Scolopacidae | ARG43025 | |
| 8 | Adelomyia melanogenys | Picaflor yungueño | Speckled Hummingbird | Trochilidae | ARG57012 | |
| 9 | Aegolius harrisii | Lechucita canela | Buff-fronted Owl | Strigidae | ARG53018 | |
| 10 | Aeronautes andecolus | Vencejo blanco | Andean Swift | Apodidae | ARG56011 | |
| 11 | Aeronautes montivagus | Vencejo montañés | White-tipped Swift | Apodidae | ARG56010 | |
| 12 | Agelaioides badius | Tordo músico | Grayish Baywing | Icteridae | ARG94016 | |
| 13 | Agelasticus cyanopus | Varillero negro | Unicolored Blackbird | Icteridae | ARG94010 | |
| 14 | Agelasticus thilius | Varillero ala amarilla | Yellow-winged Blackbird | Icteridae | ARG94011 | |
| 15 | Agriornis albicauda | Gaucho andino | White-tailed Shrike-Tyrant | Tyrannidae | ARG74084 | |
| 16 | Agriornis lividus | Gaucho grande | Great Shrike-Tyrant | Tyrannidae | ARG74085 | |
| 17 | Agriornis micropterus | Gaucho común | Gray-bellied Shrike-Tyrant | Tyrannidae | ARG74086 | |
| 18 | Agriornis montanus | Gaucho serrano | Black-billed Shrike-Tyrant | Tyrannidae | ARG74083 | |
| 19 | Agriornis murinus | Gaucho chico | Lesser Shrike-Tyrant | Tyrannidae | ARG74087 | |
| 20 | Alectrurus risora | Yetapá de collar | Strange-tailed Tyrant | Tyrannidae | ARG74104 |
|
| 21 | Alectrurus tricolor | Yetapá chico | Cock-tailed Tyrant | Tyrannidae | ARG74103 | |
| 22 | Alopochelidon fucata | Golondrina cabeza rojiza | Tawny-headed Swallow | Hirundinidae | ARG81003 | |
| 23 | Amaurospiza moesta | Reinamora enana | Blackish-blue Seedeater | Cardinalidae | ARG92004 | |
| 24 | Amazilia chionogaster | Picaflor vientre blanco | White-bellied Hummingbird | Trochilidae | ARG57030 | |
| 25 | Amazilia lactea | Picaflor garganta azul | Sapphire-spangled Emerald | Trochilidae | ARG57032 | |
| 26 | Amazilia versicolor | Picaflor esmeralda | Versicolored Emerald | Trochilidae | ARG57031 | |
| 27 | Amazona aestiva | Loro hablador | Turquoise-fronted Parrot | Psittacidae | ARG66011 | |
| 28 | Amazona pretrei | Charao | Red-spectacled Parrot | Psittacidae | ARG66010 | |
| 29 | Amazona tucumana | Loro alisero | Tucuman Parrot | Psittacidae | ARG66009 | |
| 30 | Amazona vinacea | Loro vinoso | Vinaceous-breasted Parrot | Psittacidae | ARG66008 | |
| 31 | Amazonetta brasiliensis | Pato cutirí | Brazilian Teal | Anatidae | ARG14016 | |
| 32 | Amblyramphus holosericeus | Federal | Scarlet-headed Blackbird | Icteridae | ARG94009 | |
| 33 | Ammodramus humeralis | Cachilo ceja amarilla | Grassland Sparrow | Emberizidae | ARG91003 | |
| 34 | Anabacerthia amaurotis | Ticotico ceja blanca | White-browed Foliage-gleaner | Furnariidae | ARG73047 | |
| 35 | Anabacerthia lichtensteini | Ticotico ocráceo | Ochre-breasted Foliage-gleaner | Furnariidae | ARG73048 | |
| 36 | Anairetes flavirostris | Cachudito pico amarillo | Yellow-billed Tit-Tyrant | Tyrannidae | ARG74019 |
|
| 37 | Anairetes parulus | Cachudito pico negro | Tufted Tit- Tyrant | Tyrannidae | ARG74020 | |
| 38 | Anas bahamensis | Pato gargantilla | White-cheeked Pintail | Anatidae | ARG14027 | |
| 39 | Anas clypeata | Pato cuchara boreal | Northern Shoveler | Anatidae | ARG14033 | |
| 40 | Anas flavirostris | Pato barcino | Yellow-billed Teal | Anatidae | ARG14025 | |
| 41 | Anas georgica | Pato maicero | Yellow-billed Pintail | Anatidae | ARG14026 | |
| 42 | Anhinga anhinga | Aninga | Anhinga | Anhingidae | ARG28001 | |
| 43 | Anodorhynchus glaucus | Guacamayo azul | Glaucous Macaw | Psittacidae | ARG66018 | |
| 44 | Anser anser | Ganso doméstico | Graylag Goose | Anatidae | ARG14004 | |
| 45 | Anthracothorax nigricollis | Picaflor vientre negro | Black-throated Mango | Trochilidae | ARG57009 | |
| 46 | Anthus antarcticus | Cachirla grande | South Georgia Pipit | Motacillidae | ARG89008 | |
| 47 | Anthus bogotensis | Cachirla andina | Paramo Pipit | Motacillidae | ARG89007 | |
| 48 | Anthus chacoensis | Cachirla trinadora | Pampas Pipit | Motacillidae | ARG89003 | |
| 49 | Anthus correndera | Cachirla común | Correndera Pipit | Motacillidae | ARG89004 | |
| 50 | Anthus furcatus | Cachirla uña corta | Short-billed Pipit | Motacillidae | ARG89002 | |
| 51 | Anthus hellmayri | Cachirla pálida | Hellmayr's Pipit | Motacillidae | ARG89006 | |
| 52 | Anthus lutescens | Cachirla chica | Yellowish Pipit | Motacillidae | ARG89001 | |
| 53 | Anthus nattereri | Cachirla dorada | Ochre-breasted Pipit | Motacillidae | ARG89005 | |
| 54 | Antrostomus rufus | Atajacaminos colorado | Rufous Nightjar | Caprimulgidae | ARG55016 | |
| 55 | Antrostomus sericocaudatus | Atajacaminos oscuro | Silky-tailed Nightjar | Caprimulgidae | ARG55015 | |
| 56 | Anumbius annumbi | Leñatero | Firewoodgatherer | Furnariidae | ARG73067 | |
| 57 | Aphrastura spinicauda | Rayadito | Thorn-tailed Rayadito | Furnariidae | ARG73053 | |
| 58 | Aphrodroma brevirostris | Petrel pizarra | Kerguelen Petrel | Procellariidae | ARG22007 | |
| 59 | Aptenodytes forsteri | Pingüino emperador | Emperor Penguin | Spheniscidae | ARG20002 | |
| 60 | Aptenodytes patagonicus | Pingüino rey | King Penguin | Spheniscidae | ARG20001 | |
| 61 | Ara chloropterus | Guacamayo rojo | Red-and-green Macaw | Psittacidae | ARG66024 | |
| 62 | Ara militaris | Guacamayo verde | Military Macaw | Psittacidae | ARG66023 | |
| 63 | Aramides cajaneus | Chiricote | Gray-necked Wood-Rail | Rallidae | ARG36004 | |
| 64 | Aramides saracura | Saracura | Slaty-breasted Wood-Rail | Rallidae | ARG36005 | |
| 65 | Aramides ypecaha | Ipacaá | Giant Wood-Rail | Rallidae | ARG36003 | |
| 66 | Aramus guarauna | Carau | Limpkin | Aramidae | ARG35001 | |
| 67 | Aratinga nenday | Ñanday | Nanday Parakeet | Psittacidae | ARG66020 | |
| 68 | Ardea alba | Garza blanca | Great Egret | Ardeidae | ARG30011 | |
| 69 | Ardea cocoi | Garza mora | Cocoi Heron | Ardeidae | ARG30010 | |
| 70 | Ardenna gravis | Pardela cabeza negra | Great Shearwater | Procellariidae | ARG22023 | |
| 71 | Ardenna grisea | Pardela oscura | Sooty Shearwater | Procellariidae | ARG22022 | |
| 72 | Arenaria interpres | Vuelvepiedras | Ruddy Turnstone | Scolopacidae | ARG43005 | |
| 73 | Arremon flavirostris | Cerquero de collar | Saffron-billed Sparrow | Emberizidae | ARG91005 | |
| 74 | Arremon torquatus | Cerquero vientre blanco | White-browed Brushfinch | Emberizidae | ARG91004 | |
| 75 | Arundinicola leucocephala | Lavandera | White-headed Marsh Tyrant | Tyrannidae | ARG74102 | |
| 76 | Asemospiza fuliginosa | Espiguero negro | Sooty Grassquit | Thraupidae | ARG90094 | |
| 77 | Asemospiza obscura | Espiguero pardo | Dull-colored Grassquit | Thraupidae | ARG90093 | |
| 78 | Asio clamator | Lechuzón orejudo | Striped Owl | Strigidae | ARG53019 | |
| 79 | Asio flammeus | Lechuzón de campo | Short-eared Owl | Strigidae | ARG53021 | |
| 80 | Asio stygius | Lechuzón negruzco | Stygian Owl | Strigidae | ARG53020 | |
| 81 | Asthenes anthoides | Espartillero austral | Austral Canastero | Furnariidae | ARG73072 | |
| 82 | Asthenes baeri | Canastero chaqueño | Short-billed Canastero | Furnariidae | ARG73070 | |
| 83 | Asthenes dorbignyi | Canastero rojizo | Creamy-breasted Canastero | Furnariidae | ARG73069 | |
| 84 | Asthenes heteiuia | Canastero quebradeño | Maquis Canastero | Furnariidae | ARG73077 | |
| 85 | Asthenes hudsoni | Espartillero pampeano | Hudson's Canastero | Furnariidae | ARG73071 | |
| 86 | Asthenes maculicauda | Espartillero estriado | Scribble-tailed Canastero | Furnariidae | ARG73073 | |
| 87 | Asthenes modesta | Canastero pálido | Cordilleran Canastero | Furnariidae | ARG73075 |
|
| 88 | Asthenes pyrrholeuca | Canastero coludo | Sharp-billed Canastero | Furnariidae | ARG73076 | |
| 89 | Asthenes sclateri | Espartillero serrano | Puna Canastero | Furnariidae | ARG73074 | |
| 90 | Athene cunicularia | Lechucita de las vizcacheras | Burrowing Owl | Strigidae | ARG53017 | |
| 91 | Atlapetes citrinellus | Cerquero amarillo | Yellow-striped Brushfinch | Emberizidae | ARG91008 | |
| 92 | Atlapetes fulviceps | Cerquero cabeza castaña | Fulvous-headed Brushfinch | Emberizidae | ARG91007 | |
| 93 | Attagis gayi | Agachona grande | Rufous-bellied Seedsnipe | Thinocoridae | ARG44001 | |
| 94 | Attagis malouinus | Agachona patagónica | White-bellied Seedsnipe | Thinocoridae | ARG44002 | |
| 95 | Attila phoenicurus | Burlisto cabeza negra | Rufous-tailed Attila | Tyrannidae | ARG74130 | |
| 96 | Automolus leucophthalmus | Ticotico ojo blanco | White-eyed Foliage-gleaner | Furnariidae | ARG73051 | |
| 97 | Bartramia longicauda | Batitú | Upland Sandpiper | Scolopacidae | ARG43001 | |
| 98 | Baryphthengus ruficapillus | Yeruvá | Rufous-capped A Motmot | Momotidae | ARG60001 | |
| 99 | Basileuterus culicivorus | Arañero coronado chico | Golden-crowned Warbler | Parulidae | ARG93009 | |
| 100 | Batara cinerea | Batará gigante | Giant Antshrike | Thamnophilidae | ARG67002 | |
| 101 | Biatas nigropectus | Batará pecho negro | White-bearded Antshrike | Thamnophilidae | ARG67006 | |
| 102 | Bolborhynchus orbygnesius | Catita andina | Andean Parakeet | Psittacidae | ARG66003 | |
| 103 | Botaurus pinnatus | Mirasol grande | Pinnated Bittern | Ardeidae | ARG30004 | |
| 104 | Brotogeris chiriri | Catita chirirí | Yellow-chev-roned Parakeet | Psittacidae | ARG66005 | |
| 105 | Bubo magellanicus | Tucúquere | Magellanic Horned Owl | Strigidae | ARG53008 | |
| 106 | Bubo virginianus | Ñacurutú | Great Horned Owl | Strigidae | ARG53007 | |
| 107 | Bubulcus ibis | Garcita bueyera | Cattle Egret | Ardeidae | ARG30009 | |
| 108 | Busarellus nigricollis | Aguilucho pampa | Black-collared Hawk | Accipitridae | ARG34012 | |
| 109 | Buteo albigula | Aguilucho andino | White-throated Hawk | Accipitridae | ARG34038 | |
| 110 | Buteo albonotatus | Aguilucho negro | Zone-tailed Hawk | Accipitridae | ARG34041 | |
| 111 | Buteo brachyurus | Aguilucho cola corta | Short-tailed Hawk | Accipitridae | ARG34039 | |
| 112 | Buteo nitidus | Aguilucho gris | Gray-lined Hawk | Accipitridae | ARG34036 | |
| 113 | Buteo platypterus | Aguilucho alas anchas | Broad-winged Hawk | Accipitridae | ARG34037 | |
| 114 | Buteo swainsoni | Aguilucho langostero | Swainson's Hawk | Accipitridae | ARG34040 | |
| 115 | Buteo ventralis | Aguilucho cola rojiza | Rufous-tailed Hawk | Accipitridae | ARG34042 | |
| 116 | Buteogallus coronatus | Aguila coronada | Chaco Eagle | Accipitridae | ARG34028 | |
| 117 | Buteogallus meridionalis | Aguilucho colorado | Savanna Hawk | Accipitridae | ARG34025 | |
| 118 | Buteogallus solitarius | Aguila solitaria | Solitary Eagle | Accipitridae | ARG34027 | |
| 119 | Buteogallus urubitinga | Aguila negra | Great Black Hawk | Accipitridae | ARG34026 | |
| 120 | Butorides striata | Garcita azulada | Striated Heron | Ardeidae | ARG30008 | |
| 121 | Cacicus chrysopterus | Boyero ala amarilla | Golden-winged Cacique | Icteridae | ARG94003 | |
| 122 | Cacicus haemorrhous | Boyero cacique | Red-rumped Cacique | Icteridae | ARG94004 | |
| 123 | Cacicus solitarius | Boyero negro | Solitary Black Cacique | Icteridae | ARG94002 | |
| 124 | Cairina moschata | Pato real | Muscovy Duck | Anatidae | ARG14013 | |
| 125 | Calidris alba | Playerito blanco | Sanderling | Scolopacidae | ARG43009 | |
| 126 | Calidris bairdii | Playerito unicolor | Baird's Sandpiper | Scolopacidae | ARG43010 | |
| 127 | Calidris canutus | Playero rojizo | Red Knot | Scolopacidae | ARG43006 | |
| 128 | Calidris fuscicollis | Playerito rabadilla blanca | White-rumped Sandpiper | Scolopacidae | ARG43012 | |
| 129 | Calidris himantopus | Playero picudo | Stilt Sandpiper | Scolopacidae | ARG43008 | |
| 130 | Calidris melanotos | Playerito pectoral | Pectoral Sandpiper | Scolopacidae | ARG43014 | |
| 131 | Calidris minutilla | Playerito menor | Least Sandpiper | Scolopacidae | ARG43011 | |
| 132 | Calidris pusilla | Playerito enano | Semipalmated Sandpiper | Scolopacidae | ARG43015 | |
| 133 | Calidris subruficollis | Playerito canela | Buff-breasted Sandpiper | Scolopacidae | ARG43013 | |
| 134 | Calidris virgata | Playero de rompiente | Surfbird | Scolopacidae | ARG43007 | |
| 135 | Callipepla californica | Codorniz de California | California Quail | Odontophoridae | ARG16001 | |
| 136 | Calliphlox amethystina | Picaflor amatista | Amethyst Woodstar | Trochilidae | ARG57023 | |
| 137 | Callonetta leucophrys | Pato de collar | Ringed Teal | Anatidae | ARG14015 | |
| 138 | Calonectris diomedea | Pardela grande | Cory's Shearwater | Procellariidae | ARG22020 | |
| 139 | Calonectris edwardsii | Pardela de Cabo Verde | Cape Verde Shearwater | Procellariidae | ARG22021 | |
| 140 | Campephilus leucopogon | Carpintero lomo blanco | Cream-backed Woodpecker | Picidae | ARG63028 | |
| 141 | Campephilus magellanicus | Carpintero gigante | Magellanic Woodpecker | Picidae | ARG63029 | |
| 142 | Campephilus melanoleucos | Carpintero garganta negra | Crimson-crested Woodpecker | Picidae | ARG63027 | |
| 143 | Campephilus robustus | Carpintero grande | Robust Woodpecker | Picidae | ARG63026 | |
| 144 | Camptostoma obsoletum | Piojito silbón | Southern Bear-less-Tyrannulet | Tyrannidae | ARG74015 | |
| 145 | Campylorhamphus falcularius | Picapalo oscuro | Black-billed Scythebill | Furnariidae | ARG73016 | |
| 146 | Campylorhamphus trochilirostris | Picapalo colorado | Red-billed Scythebill | Furnariidae | ARG73015 | |
| 147 | Campylorhynchus turdinus | Ratona grande | Thrush-like Wren | Troglodytidae | ARG82005 | |
| 148 | Capsiempis flaveola | Mosqueta ceja amarilla | Yellow Tyrannulet | Tyrannidae | ARG74026 | |
| 149 | Caracara plancus | Carancho | Southern Caracara | Falconidae | ARG65005 | |
| 150 | Carduelis carduelis | Cardelino | European Goldfinch | Fringillidae | ARG95002 | |
| 151 | Cariama cristata | Chuña patas rojas | Red-legged Seriema | Cariamidae | ARG64001 | |
| 152 | Casiornis rufus | Burlisto castaño | Rufous Casiornis | Tyrannidae | ARG74124 | |
| 153 | Catamblyrhynchus diadema | Diadema | Plushcap | Thraupidae | ARG90029 | |
| 154 | Catamenia analis | Piquitodeoro común | Band-tailed Seedeater | Thraupidae | ARG90087 | |
| 155 | Catamenia inornata | Piquitodeoro grande | Plain-colored Seedeater | Thraupidae | ARG90088 | |
| 156 | Cathartes aura | Jote cabeza colorada | Turkey Vulture | Cathartidae | ARG32001 | |
| 157 | Cathartes burrovianus | Jote cabeza amarilla | Lesser Yellowheaded Vulture | Cathartidae | ARG32002 | |
| 158 | Cathartes melambrotus | Jote cabeza amarilla grande | Greater Yellowheaded Vulture | Cathartidae | ARG32003 | |
| 159 | Catharus dryas | Zorzalito overo | Spotted Nightingale-Thrush | Turdidae | ARG86001 | |
| 160 | Catharus fuscescens | Zorzalito rojizo | Veery | Turdidae | ARG86002 | |
| 161 | Catharus ustulatus | Zorzalito boreal | Swainson's Thrush | Turdidae | ARG86003 | |
| 162 | Celeus flavescens | Carpintero copete amarillo | Blond-crested Woodpecker | Picidae | ARG63023 | |
| 163 | Celeus galeatus | Carpintero cara canela | Helmeted Woodpecker | Picidae | ARG63021 | |
| 164 | Celeus lugubris | Carpintero copete pajizo | Pale-crested Woodpecker | Picidae | ARG63022 | |
| 165 | Certhiaxis cinnamomeus | Curutié colorado | Yellow-chinned Spinetail | Furnariidae | ARG73089 | |
| 166 | Chaetura cinereiventris | Vencejo chico | Gray-rumped Swift | Apodidae | ARG56006 | |
| 167 | Chaetura meridionalis | Vencejo de tormenta | Sick's Swift | Apodidae | ARG56008 | |
| 168 | Chaetura pelagica | Vencejo de chimenea | Chimney Swift | Apodidae | ARG56007 | |
| 169 | Chamaeza campanisona | Tovaca común | Short-tailed Antthrush | Formicariidae | ARG72001 |
|
| 170 | Chamaeza ruficauda | Tovaca colorada | Rufous-tailed Antthrush | Formicariidae | ARG72002 | |
| 171 | Charadrius alticola | Chorlito puneño | Puna Plover | Charadriidae | ARG38009 | |
| 172 | Charadrius collaris | Chorlito de collar | Collared Plover | Charadriidae | ARG38008 | |
| 173 | Charadrius falklandicus | Chorlito doble collar | Two-banded Plover | Charadriidae | ARG38010 | |
| 174 | Charadrius modestus | Chorlito pecho canela | Rufous-chested Dotterel | Charadriidae | ARG38011 | |
| 175 | Charadrius semipalmatus | Chorlito palmado | Semipalmated Plover | Charadriidae | ARG38007 | |
| 176 | Chauna torquata | Chajá | Southern Screamer | Anhimidae | ARG13001 | |
| 177 | Chionis albus | Paloma antártica | Snowy Sheathbill | Chionidae | ARG41001 | |
| 178 | Chiroxiphia boliviana | Bailarín yungueño | Yungas Manakin | Pipridae | ARG77001 | |
| 179 | Chiroxiphia caudata | Bailarín azul | Swallow-tailed Manakin | Pipridae | ARG77002 |
|
| 180 | Chlidonias niger | Gaviotín negro | Black Tern | Laridae | ARG48012 | |
| 181 | Chloephaga hybrida | Caranca | Kelp Goose | Anatidae | ARG14010 | |
| 182 | Chloephaga picta | Cauquén común | Upland Goose | Anatidae | ARG14009 | |
| 183 | Chloephaga poliocephala | Cauquén real | Ashy-headed Goose | Anatidae | ARG14011 | |
| 184 | Chloephaga rubidiceps | Cauquén colorado | Ruddy-headed Goose | Anatidae | ARG14012 | |
| 185 | Chloris chloris | Verderón | European Greenfinch | Fringillidae | ARG95001 | |
| 186 | Chloroceryle aenea | Martín pescador enano | American Pygmy Kingfisher | Alcedinidae | ARG59004 | |
| 187 | Chloroceryle amazona | Martín pescador mediano | Amazon Kingfisher | Alcedinidae | ARG59002 | |
| 188 | Chloroceryle americana | Martín pescador chico | Green Kingfisher | Alcedinidae | ARG59003 | |
| 189 | Chlorophonia cyanea | Tangará bonito | Blue-naped Chlorophonia | Fringillidae | ARG95013 | |
| 190 | Chlorospingus flavopectus | Frutero yungueño | Common Chlorospingus | Emberizidae | ARG91001 | |
| 191 | Chlorostilbon lucidus | Picaflor común | Glittering-bellied Emerald | Trochilidae | ARG57024 | |
| 192 | Chondrohierax uncinatus | Milano pico garfio | Hook-billed Kite | Accipitridae | ARG34003 | |
| 193 | Chordeiles acutipennis | Añapero mediano | Lesser Nighthawk | Caprimulgidae | ARG55003 | |
| 194 | Chordeiles minor | Añapero boreal | Common Nighthawk | Caprimulgidae | ARG55004 | |
| 195 | Chordeiles nacunda | Ñacundá | Nacunda Nighthawk | Caprimulgidae | ARG55001 | |
| 196 | Chordeiles pusillus | Añapero chico | Least Night-hawk | Caprimulgidae | ARG55002 | |
| 197 | Chroicocephalus cirrocephalus | Gaviota capucho gris | Gray-hooded Gull | Laridae | ARG48003 | |
| 198 | Chroicocephalus maculipennis | Gaviota capucho café | Brown-hooded Gull | Laridae | ARG48002 | |
| 199 | Chroicocephalus serranus | Gaviota andina | Andean Gull | Laridae | ARG48001 | |
| 200 | Chrysolampis mosquitus | Picaflor topacio | Ruby-topaz Hummingbird | Trochilidae | ARG57008 | |
| 201 | Chrysomus ruficapillus | Varillero congo | Chestnut-capped Blackbird | Icteridae | ARG94012 | |
| 202 | Chunga burmeisteri | Chuña patas negras | Black-legged Seriema | Cariamidae | ARG64002 | |
| 203 | Ciccaba huhula | Lechuza negra | Black-banded Owl | Strigidae | ARG53013 | |
| 204 | Ciccaba virgata | Lechuza estriada | Mottled Owl | Strigidae | ARG53012 | |
| 205 | Ciconia maguari | Cigüeña americana | Maguari Stork | Ciconiidae | ARG24001 | |
| 206 | Cinclodes albiventris | Remolinera acanelada | Cream-winged Cinclodes | Furnariidae | ARG73040 | |
| 207 | Cinclodes antarcticus | Remolinera negra | Blackish Cinclodes | Furnariidae | ARG73037 | |
| 208 | Cinclodes atacamensis | Remolinera castaña | White-winged Cinclodes | Furnariidae | ARG73042 | |
| 209 | Cinclodes comechingonus | Remolinera serrana | Cordoba Cinclodes | Furnariidae | ARG73038 | |
| 210 | Cinclodes fuscus | Remolinera común | Buff-winged Cinclodes | Furnariidae | ARG73036 | |
| 211 | Cinclodes olrogi | Remolinera chocolate | Olrog's Cinclodes | Furnariidae | ARG73039 | |
| 212 | Cinclodes oustaleti | Remolinera chica | Gray-flanked Cinclodes | Furnariidae | ARG73041 | |
| 213 | Cinclodes patagonicus | Remolinera araucana | Dark-bellied Cinclodes | Furnariidae | ARG73043 | |
| 214 | Cinclus schulzii | Mirlo de agua | Rufous-throated Dipper | Cinclidae | ARG85001 | |
| 215 | Circus buffoni | Gavilán planeador | Long-winged Harrier | Accipitridae | ARG34018 | |
| 216 | Circus cinereus | Gavilán ceniciento | Cinereous Harrier | Accipitridae | ARG34017 | |
| 217 | Cissopis leverianus | Frutero overo | Magpie Tanager | Thraupidae | ARG90004 | |
| 218 | Cistothorus platensis | Ratona aperdizada | Sedge Wren | Troglodytidae | ARG82004 | |
| 219 | Claravis pretiosa | Palomita azulada | Blue Ground Dove | Columbidae | ARG50021 | |
| 220 | Clibanornis dendrocolaptoides | Tacuarero | Canebrake Groundcreeper | Furnariidae | ARG73050 | |
| 221 | Cnemotriccus fuscatus | Mosqueta ceja blanca | Fuscous Flycatcher | Tyrannidae | ARG74059 | |
| 222 | Coccycua cinerea | Cuclillo chico | Ash-colored Cuckoo | Cuculidae | ARG51008 | |
| 223 | Coccyzus americanus | Cuclillo pico amarillo | Yellow-billed Cuckoo | Cuculidae | ARG51011 | |
| 224 | Coccyzus erythropthalmus | Cuclillo ojo colorado | Black-billed Cuckoo | Cuculidae | ARG51013 | |
| 225 | Coccyzus euleri | Cuclillo ceniciento | Pearly-breasted Cuckoo | Cuculidae | ARG51012 | |
| 226 | Coccyzus melacoryphus | Cuclillo canela | Dark-billed Cuckoo | Cuculidae | ARG51010 | |
| 227 | Cochlearius cochlearius | Garza cucharona | Boat-billed Heron | Ardeidae | ARG30003 | |
| 228 | Coereba flaveola | Mielero | Bananaquit | Thraupidae | ARG90092 | |
| 229 | Colaptes campestris | Carpintero campestre | Campo Flicker | Picidae | ARG63020 | |
| 230 | Colaptes melanochloros | Carpintero real verde | Green-barred Woodpecker | Picidae | ARG63017 | |
| 231 | Colaptes pitius | Carpintero pitío | Chilean Flicker | Picidae | ARG63018 | |
| 232 | Colaptes rubiginosus | Carpintero dorado gris | Golden-olive Woodpecker | Picidae | ARG63016 | |
| 233 | Colaptes rupicola | Carpintero andino | Andean Flicker | Picidae | ARG63019 | |
| 234 | Colibri coruscans | Colibrí grande | Sparkling Violetear | Trochilidae | ARG57005 | |
| 235 | Colibri serrirostris | Colibrí mediano | White-vented Violetear | Trochilidae | ARG57006 | |
| 236 | Colonia colonus | Yetapá negro | Long-tailed Tyrant | Tyrannidae | ARG74108 | |
| 237 | Colorhamphus parvirostris | Peutrén | Patagonian Tyrant | Tyrannidae | ARG74107 | |
| 238 | Columba livia | Paloma doméstica | Rock Pigeon | Columbidae | ARG50001 | |
| 239 | Columbina minuta | Torcacita enana | Plain-breasted Ground Dove | Columbidae | ARG50017 | |
| 240 | Columbina picui | Torcacita común | Picui Ground Dove | Columbidae | ARG50020 | |
| 241 | Columbina squammata | Torcacita escamada | Scaled Dove | Columbidae | ARG50019 | |
| 242 | Columbina talpacoti | Torcacita colorada | Ruddy Ground Dove | Columbidae | ARG50018 | |
| 243 | Conirostrum binghami | Saí grande | Giant Conebill | Thraupidae | ARG90026 | |
| 244 | Conirostrum speciosum | Saí común | Chestnut-vented Conebill | Thraupidae | ARG90025 | |
| 245 | Conopias trivirgatus | Benteveo chico | Three-striped Flycatcher | Tyrannidae | ARG74114 | |
| 246 | Conopophaga lineata | Chupadientes | Rufous Gnateater | Conopophagidae | ARG69001 |
|
| 247 | Contopus cinereus | Burlisto chico | Tropical Pewee | Tyrannidae | ARG74062 | |
| 248 | Contopus fumigatus | Buslisto copetón | Smoke-colored Pewee | Tyrannidae | ARG74061 | |
| 249 | Coragyps atratus | Jote cabeza negra | Black Vulture | Cathartidae | ARG32004 | |
| 250 | Coryphaspiza melanotis | Cachilo de antifaz | Black-masked Finch | Thraupidae | ARG90089 | |
| 251 | Coryphistera alaudina | Crestudo | Lark-like Brushrunner | Furnariidae | ARG73068 | |
| 252 | Coryphospingus cucullatus | Brasita de fuego | Red-crested Finch | Thraupidae | ARG90090 | |
| 253 | Corythopis delalandi | Mosquitero | Southern Antpipit | Tyrannidae | ARG74033 | |
| 254 | Coscoroba coscoroba | Coscoroba | Coscoroba Swan | Anatidae | ARG14006 | |
| 255 | Coturnicops notatus | Burrito enano | Speckled Rail | Rallidae | ARG36001 | |
| 256 | Cranioleuca obsoleta | Curutié olivaceo | Olive Spinetail | Furnariidae | ARG73081 | |
| 257 | Cranioleuca pyrrhophia | Curutié blanco | Stripe-crowned Spinetail | Furnariidae | ARG73080 | |
| 258 | Crax fasciolata | Muitú | Bare-faced | Cracidae | ARG15006 | |
| 259 | Crotophaga ani | Anó chico | Smooth-billed | Cuculidae | ARG51003 | |
| 260 | Crotophaga major | Anó grande | Greater Ani | Cuculidae | ARG51002 | |
| 261 | Crotophaga sulcirostris | Anó pico surcado | Groove-billed Ani | Cuculidae | ARG51004 | |
| 262 | Crypturellus obsoletus | Tataupá rojizo | Brown Tinamou | Tinamidae | ARG12002 | |
| 263 | Crypturellus parvirostris | Tataupá chico | Small-billed Tinamou | Tinamidae | ARG12004 | |
| 264 | Crypturellus tataupa | Tataupá común | Tataupa Tinamou | Tinamidae | ARG12005 | |
| 265 | Crypturellus undulatus | Tataupá listado | Undulated Tinamou | Tinamidae | ARG12003 | |
| 266 | Culicivora caudacuta | Tachurí coludo | Sharp-tailed Tyrant | Tyrannidae | ARG74045 | |
| 267 | Curaeus curaeus | Tordo patagónico | Austral Blackbird | Icteridae | ARG94008 | |
| 268 | Cyanocorax caeruleus | Urraca azul | Azure Jay | Corvidae | ARG80002 | |
| 269 | Cyanocorax chrysops | Urraca común | Plush-crested Jay | Corvidae | ARG80003 | |
| 270 | Cyanocorax cyanomelas | Urraca morada | Purplish Jay | Corvidae | ARG80001 | |
| 271 | Cyanoliseus patagonus | Loro barranquero | Burrowing Parakeet | Psittacidae | ARG66017 | |
| 272 | Cyanoloxia brissonii | Reinamora grande | Ultramarine Grosbeak | Cardinalidae | ARG92006 | |
| 273 | Cyanoloxia glaucocaerulea | Reinamora chica | Glaucous-blue Grosbeak | Cardinalidae | ARG92005 | |
| 274 | Cyclarhis gujanensis | Juan chiviro | Rufous-browed Peppershrike | Vireonidae | ARG79001 | |
| 275 | Cygnus melancoryphus | Cisne cuello negro | Black-necked Swan | Anatidae | ARG14005 | |
| 276 | Cypseloides fumigatus | Vencejo negruzco | Sooty Swift | Apodidae | ARG56002 | |
| 277 | Cypseloides rothschildi | Vencejo pardusco | Rothschild's Swift | Apodidae | ARG56001 | |
| 278 | Cypseloides senex | Vencejo de cascada | Great Dusky Swift | Apodidae | ARG56003 | |
| 279 | Dacnis cayana | Saí azul | Blue Dacnis | Thraupidae | ARG90023 | |
| 280 | Daption capense | Petrel damero | Cape Petrel | Procellariidae | ARG22005 | |
| 281 | Dendrocincla turdina | Arapasú | Plain-winged Woodcreeper | Furnariidae | ARG73009 | |
| 282 | Dendrocolaptes picumnus | Trepador colorado | Black-banded Woodcreeper | Furnariidae | ARG73010 | |
| 283 | Dendrocolaptes platyrostris | Trepador oscuro | Planalto Woodcreeper | Furnariidae | ARG73011 | |
| 284 | Dendrocygna autumnalis | Sirirí vientre negro | Black-bellied Whistling-Duck | Anatidae | ARG14003 | |
| 285 | Dendrocygna bicolor | Sirirí colorado | Fulvous Whistling-Duck | Anatidae | ARG14001 | |
| 286 | Dendrocygna viduata | Sirirí pampa | White-faced Whistling-Duck | Anatidae | ARG14002 | |
| 287 | Diglossa carbonaria | Payador negro | Gray-bellied Flowerpiercer | Thraupidae | ARG90027 | |
| 288 | Diglossa sittoides | Payador canela | Rusty Flowerpiercer | Thraupidae | ARG90028 | |
| 289 | Diomedea dabbenena | Albatros de Tristán | Tristan Albatross | Diomedeidae | ARG21003 | |
| 290 | Diomedea epomophora | Albatros real | Royal Albatross | Diomedeidae | ARG21001 | |
| 291 | Diomedea exulans | Albatros errante | Wandering Albatross | Diomedeidae | ARG21002 | |
| 292 | Diomedea sanfordi | Albatros real del norte | Northern Royal Albatross | Diomedeidae | ARG21004 | |
| 293 | Diuca diuca | Diuca común | Common Diuca-Finch | Thraupidae | ARG90041 | |
| 294 | Dolichonyx oryzivorus | Charlatán | Bobolink | Icteridae | ARG94020 | |
| 295 | Donacobius atricapilla | Angú | Black-capped Donacobius | Donacobiidae | ARG84001 | |
| 296 | Donacospiza albifrons | Cachilo canela | Long-tailed Reed Finch | Thraupidae | ARG90047 | |
| 297 | Dromococcyx pavoninus | Yasiyateré chico | Pavonine Cuckoo | Cuculidae | ARG51007 | |
| 298 | Dromococcyx phasianellus | Yasiyateré grande | Pheasant Cuckoo | Cuculidae | ARG51006 | |
| 299 | Drymophila malura | Tiluchí estriado | Dusky-tailed Antbird | Thamnophilidae | ARG67015 | |
| 300 | Drymophila rubricollis | Tiluchí colorado | Bertoni's Antbird | Thamnophilidae | ARG67014 | |
| 301 | Drymornis bridgesii | Chinchero grande | Scimitar-billed Woodcreeper | Furnariidae | ARG73017 | |
| 302 | Dryobates frontalis | Carpintero oliva yungueño | Dot-fronted Woodpecker | Picidae | ARG63013 | |
| 303 | Dryobates fumigatus | Carpintero oliva oscuro | Smoky-brown Woodpecker | Picidae | ARG63008 | |
| 304 | Dryobates passerinus | Carpintero oliva chico | Little Woodpecker | Picidae | ARG63012 | |
| 305 | Dryobates spilogaster | Carpintero oliva manchado | White-spotted Woodpecker | Picidae | ARG63009 | |
| 306 | Dryocopus lineatus | Carpintero garganta estriada | Lineated Woodpecker | Picidae | ARG63024 | |
| 307 | Dryocopus schulzii | Carpintero negro | Black-bodied Woodpecker | Picidae | ARG63025 | |
| 308 | Dysithamnus mentalis | Choca amarilla | Plain Antvireo | Thamnophilidae | ARG67010 | |
| 309 | Egretta caerulea | Garza azul | Little Blue Heron | Ardeidae | ARG30015 | |
| 310 | Egretta thula | Garcita blanca | Snowy Egret | Ardeidae | ARG30014 | |
| 311 | Elaenia albiceps | Fiofío silbón | White-crested Elaenia | Tyrannidae | ARG74009 | |
| 312 | Elaenia chiriquensis | Fiofío belicoso | Lesser Elaenia | Tyrannidae | ARG74013 | |
| 313 | Elaenia flavogaster | Fiofío copetón | Yellow-bellied Elaenia | Tyrannidae | ARG74007 | |
| 314 | Elaenia mesoleuca | Fiofío oliváceo | Olivaceous Elaenia | Tyrannidae | ARG74011 | |
| 315 | Elaenia obscura | Fiofío oscuro | Highland Elaenia | Tyrannidae | ARG74014 | |
| 316 | Elaenia parvirostris | Fiofío pico corto | Small-billed Elaenia | Tyrannidae | ARG74010 | |
| 317 | Elaenia spectabilis | Fiofío grande | Large Elaenia | Tyrannidae | ARG74008 | |
| 318 | Elaenia strepera | Fiofio plomizo | Slaty Elaenia | Tyrannidae | ARG74012 | |
| 319 | Elanoides forficatus | Milano tijereta | Swallow-tailed Kite | Accipitridae | ARG34005 | |
| 320 | Elanus leucurus | Milano blanco | White-tailed Kite | Accipitridae | ARG34001 | |
| 321 | Eleothreptus anomalus | Atajacaminos ala negra | Sickle-winged Nightjar | Caprimulgidae | ARG55008 | |
| 322 | Emberizoides herbicola | Coludo grande | Wedge-tailed Grass-Finch | Thraupidae | ARG90068 | |
| 323 | Emberizoides ypiranganus | Coludo chico | Lesser Grass-Finch | Thraupidae | ARG90069 | |
| 324 | Embernagra platensis | Verdón | Great Pampa-Finch | Thraupidae | ARG90070 | |
| 325 | Empidonax alnorum | Mosqueta boreal | Alder Flycatcher | Tyrannidae | ARG74060 | |
| 326 | Empidonomus aurantioatrocristatus | Tuquito gris | Crowned Slaty Flycatcher | Tyrannidae | ARG74119 | |
| 327 | Empidonomus varius | Tuquito rayado | Variegated Flycatcher | Tyrannidae | ARG74118 | |
| 328 | Enicognathus ferrugineus | Cachaña | Austral Parakeet | Psittacidae | ARG66015 | |
| 329 | Enicognathus leptorhynchus | Choroy | Slender-billed Parakeet | Psittacidae | ARG66016 | |
| 330 | Eriocnemis glaucopoides | Picaflor frente azul | Blue-capped Puffleg | Trochilidae | ARG57017 | |
| 331 | Eudromia elegans | Martineta común | Elegant Crested-Tinamou | Tinamidae | ARG12013 | |
| 332 | Eudromia formosa | Martineta chaqueña | Quebracho Crested-Tinamou | Tinamidae | ARG12014 | |
| 333 | Eudyptes chrysocome | Pingüino penacho amarillo | Rockhopper Penguin | Spheniscidae | ARG20008 | |
| 334 | Eudyptes chrysolophus | Pingüino frente dorada | Macaroni Penguin | Spheniscidae | ARG20007 | |
| 335 | Eugralla paradoxa | Churrín grande | Ochre-flanked Tapaculo | Rhinocryptidae | ARG71007 | |
| 336 | Eupetomena macroura | Picaflor tijera | Swallow-tailed Hummingbird | Trochilidae | ARG57026 | |
| 337 | Euphonia chalybea | Tangará picudo | Green-throated Euphonia | Fringillidae | ARG95010 | |
| 338 | Euphonia chlorotica | Tangará común | Purple-throated Euphonia | Fringillidae | ARG95008 | |
| 339 | Euphonia cyanocephala | Tangará cabeza celeste | Golden-rumped Euphonia | Fringillidae | ARG95011 | |
| 340 | Euphonia pectoralis | Tangará alcalde | Chestnut-bellied Euphonia | Fringillidae | ARG95012 | |
| 341 | Euphonia violacea | Tangará amarillo | Violaceous Euphonia | Fringillidae | ARG95009 | |
| 342 | Eupsittula aurea | Calancate frente dorada | Peach-fronted Parakeet | Psittacidae | ARG66019 | |
| 343 | Euscarthmus meloryphus | Barullero | Tawny-crowned Pygmy-Tyrant | Tyrannidae | ARG74034 | |
| 344 | Falco deiroleucus | Halcón negro grande | Orange-breasted Falcon | Falconidae | ARG65013 | |
| 345 | Falco femoralis | Halcón plomizo | Aplomado Falcon | Falconidae | ARG65014 | |
| 346 | Falco peregrinus | Halcón peregrino | Peregrine Falcon | Falconidae | ARG65015 | |
| 347 | Falco rufigularis | Halcón negro chico | Bat Falcon | Falconidae | ARG65012 | |
| 348 | Falco sparverius | Halconcito colorado | American Kestrel | Falconidae | ARG65011 | |
| 349 | Florisuga fusca | Picaflor negro | Black Jacobin | Trochilidae | ARG57001 | |
| 350 | Florisuga mellivora | Picaflor cuello blanco | White-necked Jacobin | Trochilidae | ARG57002 | |
| 351 | Fluvicola albiventer | Viudita blanca | Black-backed Water-Tyrant | Tyrannidae | ARG74100 | |
| 352 | Fluvicola nengeta | Viudita enmascarada | Masked Water-Tyrant | Tyrannidae | ARG74101 | |
| 353 | Forpus xanthopterygius | Catita enana | Blue-winged Parrotlet | Psittacidae | ARG66012 | |
| 354 | Fregata magnificens | Ave fragata | Magnificent Frigatebird | Fregatidae | ARG25001 | |
| 355 | Fregetta grallaria | Paíño vientre blanco | White-bellied Storm-Petrel | Hydrobatidae | ARG23001 | |
| 356 | Fregetta tropica | Paíño vientre negro | Black-bellied Storm-Petrel | Hydrobatidae | ARG23002 | |
| 357 | Fulica ardesiaca | Gallareta andina | Slate-colored Coot | Rallidae | ARG36024 | |
| 358 | Fulica armillata | Gallareta ligas rojas | Red-gartered Coot | Rallidae | ARG36020 | |
| 359 | Fulica cornuta | Gallareta cornuda | Horned Coot | Rallidae | ARG36023 | |
| 360 | Fulica gigantea | Gallareta gigante | Giant Coot | Rallidae | ARG36022 | |
| 361 | Fulica leucoptera | Gallareta chica | White-winged Coot | Rallidae | ARG36025 | |
| 362 | Fulica rufifrons | Gallareta escudete rojo | Red-fronted Coot | Rallidae | ARG36021 | |
| 363 | Fulmarus glacialoides | Petrel plateado | Southern Fulmar | Procellariidae | ARG22003 | |
| 364 | Furnarius cristatus | Hornerito copetón | Crested Hornero | Furnariidae | ARG73029 | |
| 365 | Furnarius rufus | Hornero | Rufous Hornero | Furnariidae | ARG73028 |
|
| 366 | Gallinago andina | Becasina andina | Puna Snipe | Scolopacidae | ARG43021 | |
| 367 | Gallinago paraguaiae | Becasina común | South American Snipe | Scolopacidae | ARG43020 | |
| 368 | Gallinago stricklandii | Becasina grande | Fuegian Snipe | Scolopacidae | ARG43018 | |
| 369 | Gallinago undulata | Becasina gigante | Giant Snipe | Scolopacidae | ARG43019 | |
| 370 | Gallinula galeata | Pollona negra | Common Gallinule | Rallidae | ARG36017 | |
| 371 | Gampsonyx swainsonii | Milano chico | Pearl Kite | Accipitridae | ARG34002 | |
| 372 | Garrodia nereis | Paíño gris | Gray-backed Storm-Petrel | Hydrobatidae | ARG23004 | |
| 373 | Gelochelidon nilotica | Gaviotín pico grueso | Gull-billed Tern | Laridae | ARG48011 | |
| 374 | Geositta antarctica | Caminera patagónica | Short-billed Miner | Furnariidae | ARG73006 | |
| 375 | Geositta cunicularia | Caminera común | Common Miner | Furnariidae | ARG73003 | |
| 376 | Geositta isabellina | Caminera grande | Creamy-rumped Miner | Furnariidae | ARG73007 | |
| 377 | Geositta punensis | Caminera puneña | Puna Miner | Furnariidae | ARG73004 | |
| 378 | Geositta rufipennis | Caminera colorada | Rufous-banded Miner | Furnariidae | ARG73005 | |
| 379 | Geositta tenuirostris | Caminera picuda | Slender-billed Miner | Furnariidae | ARG73002 | |
| 380 | Geospizopsis plebejus | Yal chico | Ash-breasted Sierra-Finch | Thraupidae | ARG90036 | |
| 381 | Geospizopsis unicolor | Yal plomizo | Plumbeous Sierra-Finch | Thraupidae | ARG90034 | |
| 382 | Geothlypis aequinoctialis | Arañero cara negra | Masked Yellowthroat | Parulidae | ARG93001 | |
| 383 | Geotrygon montana | Paloma montera castaña | Ruddy QuailDove | Columbidae | ARG50009 | |
| 384 | Geotrygon violacea | Paloma montera violácea | Violaceous Quail-Dove | Columbidae | ARG50010 | |
| 385 | Geranoaetus albicaudatus | Aguilucho alas largas | White-tailed Hawk | Accipitridae | ARG34032 | |
| 386 | Geranoaetus melanoleucus | Aguila mora | Black-chested Buzzard-Eagle | Accipitridae | ARG34034 | |
| 387 | Geranoaetus polyosoma | Aguilucho común | Variable Hawk | Accipitridae | ARG34033 | |
| 388 | Geranospiza caerulescens | Gavilán patas largas | Crane Hawk | Accipitridae | ARG34024 | |
| 389 | Glaucidium bolivianum | Caburé yungueño | Yungas Pygmy-Owl | Strigidae | ARG53014 | |
| 390 | Glaucidium brasilianum | Caburé chico | Ferruginous Pygmy-Owl | Strigidae | ARG53015 | |
| 391 | Glaucidium nana | Caburé grande | Austral Pygmy-Owl | Strigidae | ARG53016 | |
| 392 | Gnorimopsar chopi | Chopí | Chopi Blackbird | Icteridae | ARG94007 | |
| 393 | Grallaria albigula | Chululú cabeza rojiza | White-throated Antpitta | Grallariidae | ARG70002 |
|
| 394 | Grallaria varia | Chululú pintado | Variegated Antpitta | Grallariidae | ARG70001 | |
| 395 | Gubernatrix cristata | Cardenal amarillo | Yellow Cardinal | Thraupidae | ARG90091 | |
| 396 | Gubernetes yetapa | Yetapá grande | Streamer-tailed Tyrant | Tyrannidae | ARG74098 | |
| 397 | Guira guira | Pirincho | Guira Cuckoo | Cuculidae | ARG51001 | |
| 398 | Habia rubica | Fueguero morado | Red-crowned Ant-Tanager | Cardinalidae | ARG92002 | |
| 399 | Haematopus ater | Ostrero negro | Blackish Oys-tercatcher | Haematopodidae | ARG39002 | |
| 400 | Haematopus leucopodus | Ostrero austral | Magellanic Oystercatcher | Haematopodidae | ARG39003 | |
| 401 | Haematopus palliatus | Ostrero común | American Oystercatcher | Haematopodidae | ARG39001 | |
| 402 | Halobaena caerulea | Petrel azulado | Blue Petrel | Procellariidae | ARG22011 | |
| 403 | Hapalocrex flaviventer | Burrito amarillo | Yellow-breasted Crake | Rallidae | ARG36009 | |
| 404 | Haplospiza unicolor | Afrechero plomizo | Uniform Finch | Thraupidae | ARG90044 | |
| 405 | Harpagus diodon | Milano de corbata | Rufous-thighed Kite | Accipitridae | ARG34014 | |
| 406 | Harpia harpyja | Harpía | Harpy Eagle | Accipitridae | ARG34007 | |
| 407 | Heliobletus contaminatus | Picolezna estriado | Sharp-billed Treehunter | Furnariidae | ARG73044 | |
| 408 | Heliomaster furcifer | Picaflor de barbijo | Blue-tufted Starthroat | Trochilidae | ARG57021 | |
| 409 | Heliomaster longirostris | Picaflor picudo | Long-billed Starthroat | Trochilidae | ARG57019 | |
| 410 | Heliomaster squamosus | Picaflor escamado | Stripe-breasted Starthroat | Trochilidae | ARG57020 | |
| 411 | Heliornis fulica | Ipequí | Sungrebe | Heliornithidae | ARG37001 | |
| 412 | Hemithraupis guira | Saíra dorada | Guira Tanager | Thraupidae | ARG90024 | |
| 413 | Hemitriccus diops | Mosqueta de anteojos | Drab-breasted Pygmy-Tyrant | Tyrannidae | ARG74047 | |
| 414 | Hemitriccus margaritaceiventer | Mosqueta ojo dorado | Pearly-vented Tody-Tyrant | Tyrannidae | ARG74049 |
|
| 415 | Hemitriccus obsoletus | Mosqueta ojo grande | Brown-breasted Pygmy-Tyrant | Tyrannidae | ARG74048 | |
| 416 | Herpetotheres cachinnans | Guaicurú | Laughing Falcon | Falconidae | ARG65001 | |
| 417 | Herpsilochmus atricapillus | Tiluchí plomizo | Black-capped Antwren | Thamnophilidae | ARG67012 | |
| 418 | Herpsilochmus rufimarginatus | Tiluchí ala rojiza | Rufous-winged Antwren | Thamnophilidae | ARG67013 | |
| 419 | Heteronetta atricapilla | Pato cabeza negra | Black-headed Duck | Anatidae | ARG14037 | |
| 420 | Himantopus mexicanus | Tero real | Black-necked Stilt | Recurvirostridae | ARG40001 | |
| 421 | Hirundinea ferruginea | Birro común | Cliff Flycatcher | Tyrannidae | ARG74057 |
|
| 422 | Hirundo rustica | Golondrina tijerita | Barn Swallow | Hirundinidae | ARG81014 | |
| 423 | Hydropsalis maculicaudus | Atajacaminos enano | Spot-tailed Nightjar | Caprimulgidae | ARG55011 | |
| 424 | Hydropsalis torquata | Atajacaminos tijera | Scissor-tailed Nightjar | Caprimulgidae | ARG55012 | |
| 425 | Hylocharis chrysura | Picaflor bronceado | Gilded Hummingbird | Trochilidae | ARG57035 | |
| 426 | Hylocharis cyanus | Picaflor lazulita | White-chinned Sapphire | Trochilidae | ARG57034 | |
| 427 | Hylocharis sapphirina | Picaflor cola castaña | Rufous-throated Sapphire | Trochilidae | ARG57033 | |
| 428 | Hylopezus nattereri | Chululú chico | Speckle-breasted Antpitta | Grallariidae | ARG70003 | |
| 429 | Hylophilus poicilotis | Chiví coronado | Rufous-crowned Greenlet | Vireonidae | ARG79002 | |
| 430 | Hymenops perspicillatus | Pico de plata | Spectacled Tyrant | Tyrannidae | ARG74072 | |
| 431 | Hypoedaleus guttatus | Batará goteado | Spot-backed Antshrike | Thamnophilidae | ARG67001 | |
| 432 | Icterus croconotus | Matico | Orange-backed Troupial | Icteridae | ARG94005 | |
| 433 | Icterus pyrrhopterus | Boyerito | Variable Oriole | Icteridae | ARG94006 | |
| 434 | Ictinia mississippiensis | Milano boreal | Mississippi Kite | Accipitridae | ARG34015 | |
| 435 | Ictinia plumbea | Milano plomizo | Plumbeous Kite | Accipitridae | ARG34016 | |
| 436 | Idiopsar brachyurus | Yal grande | Short-tailed Finch | Thraupidae | ARG90039 | |
| 437 | Idiopsar dorsalis | Comesebo puneño | Red-backed Sierra-Finch | Thraupidae | ARG90035 | |
| 438 | Idiopsar speculifer | Diuca ala blanca | White-winged Diuca-Finch | Thraupidae | ARG90040 | |
| 439 | Inezia inornata | Piojito picudo | Plain Tyrannulet | Tyrannidae | ARG74043 | |
| 440 | Ixobrychus exilis | Mirasol chico | Least Bittern | Ardeidae | ARG30005 | |
| 441 | Ixobrychus involucris | Mirasol común | Stripe-backed Bittern | Ardeidae | ARG30006 | |
| 442 | Jabiru mycteria | Yabirú | Jabiru | Ciconiidae | ARG24002 | |
| 443 | Jacana jacana | Jacana | Wattled Jacana | Jacanidae | ARG45001 | |
| 444 | Knipolegus aterrimus | Viudita común | White-winged Black-Tyrant | Tyrannidae | ARG74070 | |
| 445 | Knipolegus cabanisi | Viudita yungueña | Plumbeous Black-Tyrant | Tyrannidae | ARG74067 | |
| 446 | Knipolegus cyanirostris | Viudita pico celeste | Blue-billed Black-Tyrant | Tyrannidae | ARG74068 | |
| 447 | Knipolegus hudsoni | Viudita chica | Hudson's Black-Tyrant | Tyrannidae | ARG74071 | |
| 448 | Knipolegus striaticeps | Viudita chaqueña | Cinereous Tyrant | Tyrannidae | ARG74069 | |
| 449 | Larus atlanticus | Gaviota cangrejera | Olrog's Gull | Laridae | ARG48006 | |
| 450 | Larus dominicanus | Gaviota cocinera | Kelp Gull | Laridae | ARG48007 | |
| 451 | Laterallus exilis | Burrito pecho gris | Gray-breasted Crake | Rallidae | ARG36007 | |
| 452 | Laterallus leucopyrrhus | Burrito colorado | Red-and-white Crake | Rallidae | ARG36008 | |
| 453 | Laterallus melanophaius | Burrito común | Rufous-sided Crake | Rallidae | ARG36006 | |
| 454 | Lathrotriccus euleri | Mosqueta parda | Euler's Flycatcher | Tyrannidae | ARG74058 | |
| 455 | Legatus leucophaius | Tuquito chico | Piratic Flycatcher | Tyrannidae | ARG74110 | |
| 456 | Leistes defilippii | Loica pampeana | Pampas Meadowlark | Icteridae | ARG94022 | |
| 457 | Leistes loyca | Loica común | Long-tailed Meadowlark | Icteridae | ARG94023 | |
| 458 | Leistes superciliaris | Pecho colorado | White-browed Meadowlark | Icteridae | ARG94021 | |
| 459 | Lepidocolaptes angustirostris | Chinchero chico | Narrow-billed Woodcreeper | Furnariidae | ARG73018 |
|
| 460 | Lepidocolaptes falcinellus | Chinchero escamado | Scalloped Woodcreeper | Furnariidae | ARG73019 | |
| 461 | Leptasthenura aegithaloides | Coludito cola negra | Plain-mantled Tit-Spinetail | Furnariidae | ARG73058 | |
| 462 | Leptasthenura fuliginiceps | Coludito canela | Brown-capped Tit-Spinetail | Furnariidae | ARG73055 | |
| 463 | Leptasthenura platensis | Coludito copetón | Tufted TitSpinetail | Furnariidae | ARG73057 | |
| 464 | Leptasthenura setaria | Coludito de los pinos | Araucaria Tit-Spinetail | Furnariidae | ARG73059 | |
| 465 | Leptodon cayanensis | Milano cabeza gris | Gray-headed Kite | Accipitridae | ARG34004 | |
| 466 | Leptopogon amaurocephalus | Mosqueta corona parda | Sepia-capped Flycatcher | Tyrannidae | ARG74041 | |
| 467 | Leptotila megalura | Yerutí yun-gueña | Large-tailed Dove | Columbidae | ARG50013 | |
| 468 | Leptotila rufaxilla | Yerutí colorada | Gray-fronted Dove | Columbidae | ARG50012 | |
| 469 | Leptotila verreauxi | Yerutí común | White-tipped Dove | Columbidae | ARG50011 | |
| 470 | Lessonia oreas | Sobrepuesto andino | Andean Negrito | Tyrannidae | ARG74066 | |
| 471 | Lessonia rufa | Sobrepuesto común | Austral Negrito | Tyrannidae | ARG74065 | |
| 472 | Leucochloris albicollis | Picaflor garganta blanca | White-throated Hummingbird | Trochilidae | ARG57029 | |
| 473 | Leucophaeus pipixcan | Gaviota chica | Franklin's Gull | Laridae | ARG48005 | |
| 474 | Leucophaeus scoresbii | Gaviota gris | Dolphin Gull | Laridae | ARG48004 | |
| 475 | Limnoctites rectirostris | Pajonalera pico recto | Straight-billed Reedhaunter | Furnariidae | ARG73078 | |
| 476 | Limnoctites sulphuriferus | Curutié ocráceo | Sulphur-throated Spinetail | Furnariidae | ARG73079 | |
| 477 | Limnodromus griseus | Becasa gris | Short-billed Dowitcher | Scolopacidae | ARG43016 | |
| 478 | Limnodromus scolopaceus | Becasa pico largo | Long-billed Dowitcher | Scolopacidae | ARG43017 | |
| 479 | Limnornis curvirostris | Pajonalera pico curvo | Curve-billed Reedhaunter | Furnariidae | ARG73032 | |
| 480 | Limosa haemastica | Becasa de mar | Hudsonian Godwit | Scolopacidae | ARG43004 | |
| 481 | Lochmias nematura | Macuquito | Sharp-tailed Streamcreeper | Furnariidae | ARG73030 | |
| 482 | Lophonetta specularioides | Pato crestón | Crested Duck | Anatidae | ARG14022 | |
| 483 | Lophornis chalybeus | Coqueta verde | Festive Coquette | Trochilidae | ARG57011 | |
| 484 | Lophospingus griseocristatus | Soldadito gris | Gray-crested Finch | Thraupidae | ARG90046 | |
| 485 | Lophospingus pusillus | Soldadito común | Black-crested Finch | Thraupidae | ARG90045 | |
| 486 | Lophura nycthemeia | Faisán plateado | Silver Pheasant 1 | Phasianidae | ARG17001 | |
| 487 | Lurocalis semitorquatus | Añapero castaño | Short-tailed Nighthawk | Caprimulgidae | ARG55005 | |
| 488 | Machetornis rixosa | Picabuey | Cattle Tyrant | Tyrannidae | ARG74109 | |
| 489 | Mackenziaena leachii | Batará pintado | Large-tailed Antshrike | Thamnophilidae | ARG67003 | |
| 490 | Mackenziaena severa | Batará copetón | Tufted Antshrike | Thamnophilidae | ARG67004 | |
| 491 | Macronectes giganteus | Petrel gigante común | Southern Giant-Petrel | Procellariidae | ARG22001 | |
| 492 | Macronectes halli | Petrel gigante oscuro | Northern Giant-Petrel | Procellariidae | ARG22002 | |
| 493 | Macropsalis forcipata | Atajacaminos coludo | Long-trained Nightjar | Caprimulgidae | ARG55013 | |
| 494 | Manacus manacus | Bailarín blanco | White-bearded Manakin | Pipridae | ARG77003 | |
| 495 | Mareca sibilatrix | Pato overo | Chiloe Wigeon | Anatidae | ARG14024 | |
| 496 | Margarornis squamiger | Ticotico perlado | Pearled Treerunner | Furnariidae | ARG73052 | |
| 497 | Mecocerculus hellmayri | Piojito de los pinos | Buff-banded Tyrannulet | Tyrannidae | ARG74017 | |
| 498 | Mecocerculus leucophrys | Piojito gargantilla | White-throated Tyrannulet | Tyrannidae | ARG74018 | |
| 499 | Megaceryle torquata | Martín pescador grande | Ringed Kingfisher | Alcedinidae | ARG59001 | |
| 500 | Megarynchus pitangua | Pitanguá | Boat-billed Flycatcher | Tyrannidae | ARG74117 | |
| 501 | Megascops atricapilla | Alilicucú grande | Black-capped Screech-Owl | Strigidae | ARG53003 | |
| 502 | Megascops choliba | Alilicucú común | Tropical Screech-Owl | Strigidae | ARG53001 | |
| 503 | Megascops hoyi | Alilicucú yungüeño | Montane Forest Screech-Owl | Strigidae | ARG53002 | |
| 504 | Megascops sanctaecatarinae | Alilicucú orejudo | Long-tufted Screech-Owl | Strigidae | ARG53004 | |
| 505 | Melanerpes cactorum | Carpintero del cardón | White-fronted Woodpecker | Picidae | ARG63007 | |
| 506 | Melanerpes candidus | Carpintero blanco | White Woodpecker | Picidae | ARG63005 | |
| 507 | Melanerpes flavifrons | Carpintero arcoiris | Yellow-fronted Woodpecker | Picidae | ARG63006 | |
| 508 | Melanodera melanodera | Yal austral | White-bridled Finch | Thraupidae | ARG90042 | |
| 509 | Melanodera xanthogramma | Yal andino | Yellow-bridled Finch | Thraupidae | ARG90043 | |
| 510 | Melanopareia maximiliani | Gallito de collar | Olive-crowned Crescentchest | Melanopareiidae | ARG68001 |
|
| 511 | Merganetta armata | Pato de torrente | Torrent Duck | Anatidae | ARG14017 | |
| 512 | Mergus octosetaceus | Pato serrucho | Brazilian Merganser | Anatidae | ARG14036 | |
| 513 | Mesembrinibis cayennensis | Tapicurú | Green Ibis | Threskiornithidae | ARG31003 | |
| 514 | Metriopelia aymara | Palomita dorada | Golden-spotted Ground Dove | Columbidae | ARG50026 | |
| 515 | Metriopelia ceciliae | Palomita moteada | Bare-faced Ground Dove | Columbidae | ARG50023 | |
| 516 | Metriopelia melanoptera | Palomita cordillerana | Black-winged Ground Dove | Columbidae | ARG50025 | |
| 517 | Metriopelia morenoi | Palomita ojo desnudo | Bare-eyed Ground Dove | Columbidae | ARG50024 | |
| 518 | Micrastur ruficollis | Halcón montés chico | Barred Forest-Falcon | Falconidae | ARG65002 | |
| 519 | Micrastur semitorquatus | Halcón montés grande | Collared Forest-Falcon | Falconidae | ARG65003 | |
| 520 | Microspingus cabanisi | Monterita litoraleña | Gray-throated Warbling-Finch | Thraupidae | ARG90054 | |
| 521 | Microspingus erythrophrys | Monterita ceja rojiza | Rusty-browed Warbling-Finch | Thraupidae | ARG90050 | |
| 522 | Microspingus melanoleucus | Monterita cabeza negra | Black-capped Warbling-Finch | Thraupidae | ARG90056 | |
| 523 | Microspingus torquatus | Monterita de collar | Ringed Warbling-Finch | Thraupidae | ARG90055 | |
| 524 | Microstilbon burmeisteri | Picaflor enano | Slender-tailed Woodstar | Trochilidae | ARG57022 | |
| 525 | Milvago chimachima | Chimachima | Yellow-headed Caracara | Falconidae | ARG65009 | |
| 526 | Milvago chimango | Chimango | Chimango Caracara | Falconidae | ARG65010 | |
| 527 | Mimus dorsalis | Calandria castaña | Brown-backed Mockingbird | Mimidae | ARG87005 | |
| 528 | Mimus patagonicus | Calandria mora | Patagonian Mockingbird | Mimidae | ARG87002 | |
| 529 | Mimus saturninus | Calandria grande | Chalk-browed Mockingbird | Mimidae | ARG87003 | |
| 530 | Mimus thenca | Tenca | Chilean Mockingbird | Mimidae | ARG87001 | |
| 531 | Mimus triurus | Calandria real | White-banded Mockingbird | Mimidae | ARG87004 | |
| 532 | Mionectes rufiventris | Ladrillito | Gray-hooded Flycatcher | Tyrannidae | ARG74040 | |
| 533 | Molothrus bonariensis | Tordo renegrido | Shiny Cowbird | Icteridae | ARG94019 | |
| 534 | Molothrus oryzivorus | Tordo gigante | Giant Cowbird | Icteridae | ARG94018 | |
| 535 | Molothrus rufoaxillaris | Tordo pico corto | Screaming Cowbird | Icteridae | ARG94017 | |
| 536 | Momotus momota | Burgo | Amazonian Motmot | Momotidae | ARG60002 | |
| 537 | Morphnus guianensis | Aguila monera | Crested Eagle | Accipitridae | ARG34006 | |
| 538 | Muscipipra vetula | Viudita coluda | Shear-tailed Gray Tyrant | Tyrannidae | ARG74099 | |
| 539 | Muscisaxicola albilora | Dormilona ceja blanca | White-browed Ground-Tyrant | Tyrannidae | ARG74080 | |
| 540 | Muscisaxicola capistratus | Dormilona canela | Cinnamon-bellied Ground-Tyrant | Tyrannidae | ARG74081 | |
| 541 | Muscisaxicola cinereus | Dormilona cenicienta | Cinereous Ground-Tyrant | Tyrannidae | ARG74076 | |
| 542 | Muscisaxicola flavinucha | Dormilona fraile | Ochre-naped Ground-Tyrant | Tyrannidae | ARG74077 | |
| 543 | Muscisaxicola frontalis | Dormilona frente negra | Black-fronted Ground-Tyrant | Tyrannidae | ARG74082 | |
| 544 | Muscisaxicola juninensis | Dormilona puneña | Puna Ground-Tyrant | Tyrannidae | ARG74075 | |
| 545 | Muscisaxicola maclovianus | Dormilona cara negra | Dark-faced Ground-Tyrant | Tyrannidae | ARG74079 | |
| 546 | Muscisaxicola maculirostris | Dormilona chica | Spot-billed Ground-Tyrant | Tyrannidae | ARG74074 | |
| 547 | Muscisaxicola rufivertex | Dormilona gris | Rufous-naped Ground-Tyrant | Tyrannidae | ARG74078 | |
| 548 | Mustelirallus albicollis | Burrito grande | Ash-throated Crake | Rallidae | ARG36012 | |
| 549 | Mustelirallus erythrops | Burrito pico rojo | Paint-billed Crake | Rallidae | ARG36013 | |
| 550 | Mycteria americana | Tuyuyú | Wood Stork | Ciconiidae | ARG24003 | |
| 551 | Myiarchus ferox | Burlisto pico negro | Short-crested Flycatcher | Tyrannidae | ARG74127 | |
| 552 | Myiarchus swainsoni | Burlisto pico canela | Swainson's Flycatcher | Tyrannidae | ARG74126 | |
| 553 | Myiarchus tuberculifer | Burlisto corona negra | Dusky-capped Flycatcher | Tyrannidae | ARG74125 | |
| 554 | Myiarchus tyrannulus | Burlisto cola castaña | Brown-crested Flycatcher | Tyrannidae | ARG74128 | |
| 555 | Myioborus brunniceps | Arañero corona rojiza | Brown-capped Redstart | Parulidae | ARG93010 | |
| 556 | Myiodynastes chrysocephalus | Benteveo de barbijo | Golden-crowned Flycatcher | Tyrannidae | ARG74115 | |
| 557 | Myiodynastes maculatus | Benteveo rayado | Streaked Flycatcher | Tyrannidae | ARG74116 | |
| 558 | Myiopagis caniceps | Fiofío ceniciento | Gray Elaenia | Tyrannidae | ARG74005 | |
| 559 | Myiopagis viridicata | Fiofío corona dorada | Greenish Elaenia | Tyrannidae | ARG74006 | |
| 560 | Myiophobus fasciatus | Mosqueta estriada | Bran-colored Flycatcher | Tyrannidae | ARG74055 | |
| 561 | Myiopsitta monachus | Cotorra común | Monk Parakeet | Psittacidae | ARG66004 | |
| 562 | Myiornis auricularis | Mosqueta enana | Eared Pygmy-Tyrant | Tyrannidae | ARG74046 | |
| 563 | Myiotheretes striaticollis | Birro grande | Streak-throated Bush-Tyrant | Tyrannidae | ARG74095 | |
| 564 | Myiothlypis bivittata | Arañero coronado grande | Two-banded Warbler | Parulidae | ARG93008 | |
| 565 | Myiothlypis flaveola | Arañero pico pálido | Flavescent Warbler | Parulidae | ARG93004 | |
| 566 | Myiothlypis leucoblephara | Arañero silbón | White-browed Warbler | Parulidae | ARG93005 | |
| 567 | Myiothlypis rivularis | Arañero ribereño | Riverbank Warbler | Parulidae | ARG93007 | |
| 568 | Myiothlypis signata | Arañero ceja amarilla | Pale-legged Warbler | Parulidae | ARG93006 | |
| 569 | Myiozetetes similis | Benteveo mediano | Social Flycatcher | Tyrannidae | ARG74111 | |
| 570 | Myrmorchilus strigilatus | Batará estriado | Stripe-backed Antbird | Thamnophilidae | ARG67011 | |
| 571 | Nemosia pileata | Frutero cabeza negra | Hooded Tanager | Thraupidae | ARG90005 | |
| 572 | Neoxolmis rufiventris | Monjita chocolate | Chocolate-vented Tyrant | Tyrannidae | ARG74097 | |
| 573 | Netta erythrophthalma | Pato castaño | Southern Pochard | Anatidae | ARG14034 | |
| 574 | Netta peposaca | Pato picazo | Rosy-billed Pochard | Anatidae | ARG14035 | |
| 575 | Nomonyx dominicus | Pato fierro | Masked Duck | Anatidae | ARG14038 | |
| 576 | Nonnula rubecula | Chacurú chico | Rusty-breasted Nunlet | Galbulidae | ARG61004 | |
| 577 | Notharchus swainsoni | Chacurú grande | Buff-bellied Puffbird | Galbulidae | ARG61001 | |
| 578 | Nothoprocta cinerascens | Inambú montaraz | Brushland Tinamou | Tinamidae | ARG12009 | |
| 579 | Nothoprocta ornata | Inambú serrano | Ornate Tinamou | Tinamidae | ARG12008 | |
| 580 | Nothoprocta pentlandii | Inambú silbón | Andean Tinamou | Tinamidae | ARG12010 | |
| 581 | Nothura darwinii | Inambú pálido | Darwin's Nothura | Tinamidae | ARG12011 | |
| 582 | Nothura maculosa | Inambú común | Spotted Nothura | Tinamidae | ARG12012 | |
| 583 | Numenius borealis | Playero esquimal | Eskimo Curlew | Scolopacidae | ARG43002 | |
| 584 | Numenius phaeopus | Playero trinador | Whimbrel | Scolopacidae | ARG43003 | |
| 585 | Nyctibius aethereus | Urutaú coludo | Long-tailed Potoo | Nyctibiidae | ARG54001 | |
| 586 | Nyctibius griseus | Urutaú común | Common Potoo | Nyctibiidae | ARG54002 | |
| 587 | Nycticorax nycticorax | Garza bruja | Black-crowned Night-Heron | Ardeidae | ARG30007 | |
| 588 | Nycticryphes semicollaris | Aguatero | South American Painted-snipe | Rostratulidae | ARG46001 | |
| 589 | Nyctidromus albicollis | Curiango | Common Pauraque | Caprimulgidae | ARG55007 | |
| 590 | Nyctiphrynus ocellatus | Atajacaminos ocelado | Ocellated Poorwill | Caprimulgidae | ARG55014 | |
| 591 | Nystalus chacuru | Chacurú cara negra | White-eared Puffbird | Galbulidae | ARG61002 | |
| 592 | Nystalus maculatus | Durmilí | Spot-backed Puffbird | Galbulidae | ARG61003 | |
| 593 | Oceanites oceanicus | Paíño común | Wilson's Storm-Petrel | Hydrobatidae | ARG23003 | |
| 594 | Ochetorhynchus andaecola | Bandurrita cola castaña | Rock Earthcreeper | Furnariidae | ARG73023 | |
| 595 | Ochetorhynchus phoenicurus | Patagón | Band-tailed Earthcreeper | Furnariidae | ARG73025 | |
| 596 | Ochetorhynchus ruficaudus | Bandurrita pico recto | Straight-billed Earthcreeper | Furnariidae | ARG73024 | |
| 597 | Ochthoeca leucophrys | Pitajo gris | White-browed Chat-Tyrant | Tyrannidae | ARG74106 | |
| 598 | Ochthoeca oenanthoides | Pitajo canela | d'Orbigny's Chat-Tyrant | Tyrannidae | ARG74105 | |
| 599 | Odontophorus capueira | Urú | Spot-winged Wood-Quail | Odontophoridae | ARG16002 | |
| 600 | Oreopholus ruficollis | Chorlo cabezón | Tawny-throated Dotterel | Charadriidae | ARG38003 | |
| 601 | Oreotrochilus adela | Picaflor andino castaño | Wedge-tailed Hillstar | Trochilidae | ARG57016 | |
| 602 | Oreotrochilus estella | Picaflor puneño | Andean Hillstar | Trochilidae | ARG57014 | |
| 603 | Oreotrochilus leucopleurus | Picaflor andino | White-sided Hillstar | Trochilidae | ARG57015 | |
| 604 | Oressochen jubatus | Ganso de monte | Orinoco Goose | Anatidae | ARG14007 | |
| 605 | Oressochen melanopterus | Guayata | Andean Goose | Anatidae | ARG14008 | |
| 606 | Orochelidon andecola | Golondrina andina | Andean Swallow | Hirundinidae | ARG81004 | |
| 607 | Ortalis canicollis | Charata | Chaco Chachalaca | Cracidae | ARG15005 | |
| 608 | Oxyruncus cristatus | Picoagudo | Sharpbill | Oxyruncidae | ARG75001 |
|
| 609 | Oxyura ferruginea | Pato zambullidor grande | Ruddy Duck | Anatidae | ARG14039 | |
| 610 | Oxyura ferruginea | Pato cuchara | Red Shoveler | Anatidae | ARG14032 | |
| 611 | Oxyura vittata | Pato zambullidor chico | Lake Duck | Anatidae | ARG14040 | |
| 612 | Pachyptila belcheri | Prión pico fino | Slender-billed Prion | Procellariidae | ARG22015 | |
| 613 | Pachyptila desolata | Prión pico grande | Antarctic Prion | Procellariidae | ARG22014 | |
| 614 | Pachyptila turtur | Prión pico corto | Fairy Prion | Procellariidae | ARG22012 | |
| 615 | Pachyptila vittata | Prión pico ancho | Broad-billed Prion | Procellariidae | ARG22013 | |
| 616 | Pachyramphus castaneus | Anambé castaño | Chestnut-crowned Becard | Tityridae | ARG78007 | |
| 617 | Pachyramphus polychopterus | Anambé común | White-winged Becard | Tityridae | ARG78009 | |
| 618 | Pachyramphus validus | Anambé grande | Crested Becard | Tityridae | ARG78008 | |
| 619 | Pachyramphus viridis | Anambé verdoso | Green-backed Becard | Tityridae | ARG78006 |
|
| 620 | Pagodroma nivea | Petrel de las nieves | Snow Petrel | Procellariidae | ARG22006 | |
| 621 | Pandion haliaetus | Aguila pescadora | Osprey | Pandionidae | ARG33001 | |
| 622 | Parabuteo leucorrhous | Taguató negro | White-rumped Hawk | Accipitridae | ARG34031 | |
| 623 | Parabuteo unicinctus | Gavilán mixto | Harris's Hawk | Accipitridae | ARG34030 | |
| 624 | Paraclaravis geoffroyi | Palomita morada | Purple-winged Ground Dove | Columbidae | ARG50022 | |
| 625 | Pardirallus maculatus | Gallineta overa | Spotted Rail | Rallidae | ARG36014 | |
| 626 | Pardirallus nigricans | Gallineta negruzca | Blackish Rail | Rallidae | ARG36015 | |
| 627 | Pardirallus sanguinolentus | Gallineta común | Plumbeous Rail | Rallidae | ARG36016 | |
| 628 | Paroaria capitata | Cardenilla | Yellow-billed Cardinal | Thraupidae | ARG90002 | |
| 629 | Paroaria coronata | Cardenal común | Red-crested Cardinal | Thraupidae | ARG90001 | |
| 630 | Passer domesticus | Gorrión | House Sparrow | Passeridae | ARG96001 | |
| 631 | Patagioenas araucana | Paloma araucana | Chilean Pigeon | Columbidae | ARG50006 | |
| 632 | Patagioenas cayennensis | Paloma colorada | Pale-vented Pigeon | Columbidae | ARG50007 | |
| 633 | Patagioenas fasciata | Paloma nuca blanca | Band-tailed Pigeon | Columbidae | ARG50005 | |
| 634 | Patagioenas maculosa | Paloma ala manchada | Spot-winged Pigeon | Columbidae | ARG50004 | |
| 635 | Patagioenas picazuro | Paloma picazuro | Picazuro Pigeon | Columbidae | ARG50003 | |
| 636 | Patagioenas plumbea | Paloma plomiza | Plumbeous Pigeon | Columbidae | ARG50008 | |
| 637 | Patagioenas speciosa | Paloma trocal | Scaled Pigeon | Columbidae | ARG50002 | |
| 638 | Patagona gigas | Picaflor gigante | Giant Hummingbird | Trochilidae | ARG57018 | |
| 639 | Pelagodroma marina | Paíño cara blanca | White-faced Storm-Petrel | Hydrobatidae | ARG23005 | |
| 640 | Pelecanoides georgicus | Yunco geórgico | South Georgia Diving-Petrel | Procellariidae | ARG22027 | |
| 641 | Pelecanoides magellani | Yunco magallánico | Magellanic Diving-Petrel | Procellariidae | ARG22028 | |
| 642 | Pelecanoides urinatrix | Yunco común | Common Diving-Petrel | Procellariidae | ARG22026 | |
| 643 | Pelecanus thagus | Pelícano pardo | Pelicano Peruvian | Pelecanidae | ARG29001 | |
| 644 | Penelope dabbenei | Pava de monte alisera | Red-faced Guan | Cracidae | ARG15002 | |
| 645 | Penelope obscura | Pava de monte común | Dusky-legged Guan | Cracidae | ARG15003 | |
| 646 | Penelope superciliaris | Yacupoí | Rusty-margined Guan | Cracidae | ARG15001 | |
| 647 | Petrochelidon pyrrhonota | Golondrina rabadilla canela | Cliff Swallow | Hirundinidae | ARG81015 | |
| 648 | Phacellodomus ferrugineigula | Espinero pecho naranja | Orange-breasted Thornbird | Furnariidae | ARG73066 | |
| 649 | Phacellodomus maculipectus | Espinero serrano | Spot-breasted Thornbird | Furnariidae | ARG73063 | |
| 650 | Phacellodomus ruber | Espinero grande | Greater Thornbird | Furnariidae | ARG73065 | |
| 651 | Phacellodomus rufifrons | Espinero frente rojiza | Rufous-fronted Thornbird | Furnariidae | ARG73060 | |
| 652 | Phacellodomus sibilatrix | Espinero chico | Little Thornbird | Furnariidae | ARG73062 | |
| 653 | Phacellodomus striaticeps | Espinero andino | Streak-fronted Thornbird | Furnariidae | ARG73061 | |
| 654 | Phacellodomus striaticollis | Espinero pecho manchado | Freckle-breasted Thornbird | Furnariidae | ARG73064 | |
| 655 | Phaeomyias murina | Piojito pardo | Mouse-colored Tyrannulet | Tyrannidae | ARG74025 | |
| 656 | Phaethornis eurynome | Ermitaño escamado | Scale-throated Hermit | Trochilidae | ARG57004 | |
| 657 | Phaethornis pretrei | Ermitaño canela | Planalto Hermit | Trochilidae | ARG57003 | |
| 658 | Phaetusa simplex | Atí | Large-billed Tern | Laridae | ARG48010 | |
| 659 | Phalacrocorax atriceps | Cormorán imperial | Imperial Cormorant | Phalacrocoracidae | ARG27005 | |
| 660 | Phalacrocorax bougainvillii | Guanay | Guanay Cormorant | Phalacrocoracidae | ARG27004 | |
| 661 | Phalacrocorax bransfieldensis | Cormorán antártico | Antartic Cormorant | Phalacrocoracidae | ARG27006 | |
| 662 | Phalacrocorax brasilianus | Biguá | Neotropic Cormorant | Phalacrocoracidae | ARG27002 | |
| 663 | Phalacrocorax gaimardi | Cormorán gris | Red-legged Cormorant | Phalacrocoracidae | ARG27001 | |
| 664 | Phalacrocorax magellanicus | Cormorán cuello negro | Magellanic Cormorant | Phalacrocoracidae | ARG27003 | |
| 665 | Phalaropus fulicarius | Falaropo pico grueso | Red Phalarope | Scolopacidae | ARG43024 | |
| 666 | Phalaropus lobatus | Falaropo pico fino | Red-necked Phalarope | Scolopacidae | ARG43023 | |
| 667 | Phalaropus tricolor | Falaropo común | Wilson's Phal-arope | Scolopacidae | ARG43022 | |
| 668 | Phalcoboenus albogularis | Matamico blanco | White-throated Caracara | Falconidae | ARG65007 | |
| 669 | Phalcoboenus australis | Matamico grande | Striated Cara-cara | Falconidae | ARG65008 | |
| 670 | Phalcoboenus megalopterus | Matamico andino | Mountain Caracara | Falconidae | ARG65006 | |
| 671 | Phegornis mitchellii | Chorlito de vincha | Diademed Sandpiper-Plover | Charadriidae | ARG38012 | |
| 672 | Pheucticus aureoventris | Rey del bosque | Black-backed Grosbeak | Cardinalidae | ARG92003 | |
| 673 | Phibalura flavirostris | Tesorito | Swallow-tailed Cotinga | Cotingidae | ARG76005 | |
| 674 | Philydor atricapillus | Ticotico cabeza negra | Black-capped Foliage-gleaner | Furnariidae | ARG73045 | |
| 675 | Philydor rufum | Ticotico grande | Buff-fronted Foliage-gleaner | Furnariidae | ARG73046 | |
| 676 | Phimosus infuscatus | Cuervillo cara pelada | Bare-faced Ibis | Threskiornithidae | ARG31004 | |
| 677 | Phleocryptes melanops | Junquero | Wren-like Rushbird | Furnariidae | ARG73031 | |
| 678 | Phoebetria fusca | Albatros oscuro | Sooty Albatross | Diomedeidae | ARG21005 | |
| 679 | Phoebetria palpebrata | Albratros manto claro | Light-mantled Albatross | Diomedeidae | ARG21006 | |
| 680 | Phoenicoparrus andinus | Parina grande | Andean Flamingo | Phoenicopteridae | ARG19002 | |
| 681 | Phoenicoparrus jamesi | Parina chica | James's Flamingo | Phoenicopteridae | ARG19003 | |
| 682 | Phoenicopterus chilensis | Flamenco austral | Chilean Flamingo | Phoenicopteridae | ARG19001 | |
| 683 | Phrygilus atriceps | Comesebo cabeza negra | Black-hooded Sierra-Finch | Thraupidae | ARG90030 | |
| 684 | Phrygilus gayi | Comesebo andino | Gray-hooded Sierra-Finch | Thraupidae | ARG90031 | |
| 685 | Phrygilus patagonicus | Comesebo patagónico | Patagonian Sierra-Finch | Thraupidae | ARG90032 | |
| 686 | Phyllomyias burmeisteri | Mosqueta pico curvo | Rough-legged Tyrannulet | Tyrannidae | ARG74001 | |
| 687 | Phyllomyias fasciatus | Mosqueta olivácea | Planalto Tyran-nulet | Tyrannidae | ARG74004 | |
| 688 | Phyllomyias sclateri | Mosqueta corona gris | Sclater's Tyrannulet | Tyrannidae | ARG74003 | |
| 689 | Phyllomyias virescens | Mosqueta corona oliva | Greenish Tyrannulet | Tyrannidae | ARG74002 | |
| 690 | Phylloscartes eximius | Mosqueta media luna | Southern Bristle-Tyrant | Tyrannidae | ARG74036 | |
| 691 | Phylloscartes paulista | Mosqueta oreja negra | Sao Paulo Tyrannulet | Tyrannidae | ARG74038 | |
| 692 | Phylloscartes sylviolus | Mosqueta cara canela | Bay-ringed Tyrannulet | Tyrannidae | ARG74039 | |
| 693 | Phylloscartes ventralis | Mosqueta común | Mottle-cheeked Tyrannulet | Tyrannidae | ARG74037 | |
| 694 | Phytotoma rara | Rara | Rufous-tailed Plantcutter | Cotingidae | ARG76002 | |
| 695 | Phytotoma rutila | Cortarramas | White-tipped Plantcutter | Cotingidae | ARG76001 |
|
| 696 | Piaya cayana | Tingazú | Squirrel Cuckoo | Cuculidae | ARG51009 | |
| 697 | Piculus aurulentus | Carpintero dorado verdoso | White-browed Woodpecker | Picidae | ARG63015 | |
| 698 | Piculus chrysochloros | Carpintero dorado común | Golden-green Woodpecker | Picidae | ARG63014 | |
| 699 | Picumnus cirratus | Carpinterito común | White-barred Piculet | Picidae | ARG63001 | |
| 700 | Picumnus dorbignyanus | Carpinterito manchado | Ocellated Piculet | Picidae | ARG63002 | |
| 701 | Picumnus nebulosus | Carpinterito ocráceo | Mottled Piculet | Picidae | ARG63004 | |
| 702 | Picumnus temminckii | Carpinterito cuello canela | Ochre-collared Piculet | Picidae | ARG63003 | |
| 703 | Pilherodius pileatus | Garza real | Capped Heron | Ardeidae | ARG30013 | |
| 704 | Pionopsitta pileata | Catita cabeza roja | Pileated Parrot | Psittacidae | ARG66006 | |
| 705 | Pionus maximiliani | Loro maitaca | Scaly-headed Parrot | Psittacidae | ARG66007 | |
| 706 | Pipile jacutinga | Yacutinga | Black-fronted Piping-Guan | Cracidae | ARG15004 | |
| 707 | Pipra fasciicauda | Bailarín naranja | Band-tailed Manakin | Pipridae | ARG77004 | |
| 708 | Pipraeidea bonariensis | Naranjero | Blue-and-yellow Tanager | Thraupidae | ARG90016 | |
| 709 | Pipraeidea melanonota | Saíra de antifaz | Fawn-breasted Tanager | Thraupidae | ARG90015 | |
| 710 | Piprites chloris | Bailarín verde | Wing-barred Piprites | Tyrannidae | ARG74131 |
|
| 711 | Piprites pileata | Bailarín castaño | Black-capped Piprites | Tyrannidae | ARG74132 | |
| 712 | Piranga flava | Fueguero común | Hepatic Tanager | Cardinalidae | ARG92001 | |
| 713 | Pitangus lictor | Benteveo pico fino | Lesser Kiska-dee | Tyrannidae | ARG74113 | |
| 714 | Pitangus sulphuratus | Benteveo común | Great Kiskadee | Tyrannidae | ARG74112 |
|
| 715 | Platalea ajaja | Espátula rosada | Roseate Spoonbill | Threskiornithidae | ARG31008 | |
| 716 | Platyrinchus leucoryphus | Picochato chico | Russet-winged Spadebill | Tyrannidae | ARG74054 | |
| 717 | Platyrinchus mystaceus | Picochato enano | White-throated Spadebill | Tyrannidae | ARG74053 |
|
| 718 | Plegadis chihi | Cuervillo de cañada | White-faced Ibis | Threskiornithidae | ARG31001 | |
| 719 | Plegadis ridgwayi | Cuervillo puneño | Puna Ibis | Threskiornithidae | ARG31002 | |
| 720 | Pluvialis dominica | Chorlo pampa | American Golden-Plover | Charadriidae | ARG38001 | |
| 721 | Pluvialis squatarola | Chorlo ártico | Black-bellied Plover | Charadriidae | ARG38002 | |
| 722 | Pluvianellus socialis | Chorlito ceniciento | Magellanic Plover | Pluvianellidae | ARG42001 | |
| 723 | Podiceps gallardoi | Macá tobiano | Hooded Grebe | Podicipedidae | ARG18007 | |
| 724 | Podiceps juninensis | Macá andino | Northern Silvery Grebe | Podicipedidae | ARG18006 | |
| 725 | Podiceps major | Macá grande | Great Grebe | Podicipedidae | ARG18004 | |
| 726 | Podiceps occipitalis | Macá plateado | Silvery Grebe | Podicipedidae | ARG18005 | |
| 727 | Podilymbus podiceps | Macá pico grueso | Pied-billed Grebe | Podicipedidae | ARG18003 | |
| 728 | Poecilotriccus plumbeiceps | Mosqueta cabeza canela | Ochre-faced Tody-Flycatcher | Tyrannidae | ARG74050 | |
| 729 | Polioptila dumicola | Tacuarita azul | Masked Gnatcatcher | Polioptilidae | ARG83002 | |
| 730 | Polioptila lactea | Tacuarita blanca | Creamy-bellied Gnatcatcher | Polioptilidae | ARG83001 | |
| 731 | Polioxolmis rufipennis | Birro gris | Rufous-webbed Bush-Tyrant | Tyrannidae | ARG74096 | |
| 732 | Polystictus pectoralis | Tachurí canela | Bearded Tachuri | Tyrannidae | ARG74027 |
|
| 733 | Polytmus guainumbi | Picaflor de antifaz | White-tailed Goldenthroat | Trochilidae | ARG57007 | |
| 734 | Poospiza baeri | Monterita serrana | Tucuman Mountain-Finch | Thraupidae | ARG90057 | |
| 735 | Poospiza boliviana | Monterita quebradeña | Bolivian Warbling-Finch | Thraupidae | ARG90048 | |
| 736 | Poospiza nigrorufa | Sietevestidos común | Black-and-rufous Warbling-Finch | Thraupidae | ARG90052 | |
| 737 | Poospiza ornata | Monterita canela | Cinnamon Warbling-Finch | Thraupidae | ARG90051 | |
| 738 | Poospiza whitii | Sietevestidos serrano | Black-and-chestnut Warblinh-Finch | Thraupidae | ARG90053 | |
| 739 | Poospizopsis hypochondria | Monterita pecho gris | Rufous-sided Warbling-Finch | Thraupidae | ARG90049 | |
| 740 | Porphyrio flavirostris | Pollona celeste | Azure Gallinule | Rallidae | ARG36019 | |
| 741 | Porphyrio martinica | Pollona azul | Purple Gallinule | Rallidae | ARG36018 | |
| 742 | Porphyriops melanops | Pollona pintada | Spot-flanked Gallinule | Rallidae | ARG36011 | |
| 743 | Porphyrospiza alaudina | Yal platero | Band-tailed Sierra-Finch | Thraupidae | ARG90038 | |
| 744 | Porphyrospiza carbonaria | Yal carbonero | Carbonated Sierra-Finch | Thraupidae | ARG90037 | |
| 745 | Porzana spiloptera | Burrito negruzco | Dot-winged Crake | Rallidae | ARG36010 | |
| 746 | Primolius auricollis | Maracaná cuello dorado | Yellow-collared Macaw | Psittacidae | ARG66022 | |
| 747 | Primolius maracana | Maracaná lomo rojo | Blue-winged Macaw | Psittacidae | ARG66021 | |
| 748 | Procellaria aequinoctialis | Petrel barba blanca | White-chinned Petrel | Procellariidae | ARG22017 | |
| 749 | Procellaria cinerea | Petrel ceniciento | Gray Petrel | Procellariidae | ARG22016 | |
| 750 | Procellaria conspicillata | Petrel de anteojos | Spectacled Petrel | Procellariidae | ARG22018 | |
| 751 | Procellaria westlandica | Petrel negro | Westland Petrel | Procellariidae | ARG22019 | |
| 752 | Procnias nudicollis | Pájaro campana | Bare-throated Bellbird | Cotingidae | ARG76004 | |
| 753 | Progne chalybea | Golondrina doméstica | Gray-breasted Martin | Hirundinidae | ARG81008 | |
| 754 | Progne elegans | Golondrina negra | Southern Martin | Hirundinidae | ARG81009 | |
| 755 | Progne subis | Golondrina purpúrea | Purple Martin | Hirundinidae | ARG81007 | |
| 756 | Progne tapera | Golondrina parda | Brown-chested Martin | Hirundinidae | ARG81006 | |
| 757 | Psarocolius decumanus | Yapú | Crested Oropendola | Icteridae | ARG94001 | |
| 758 | Pseudasthenes humicola | Canastero estriado | Dusky-tailed Canastero | Furnariidae | ARG73082 | |
| 759 | Pseudasthenes patagonica | Canastero patagónico | Patagonian Canastero | Furnariidae | ARG73083 | |
| 760 | Pseudasthenes steinbachi | Canastero castaño | Steinbach's Canastero | Furnariidae | ARG73084 | |
| 761 | Pseudastur polionotus | Aguilucho blanco | Mantled Hawk | Accipitridae | ARG34035 | |
| 762 | Pseudocolopteryx acutipennis | Doradito oliváceo | Subtropical Doradito | Tyrannidae | ARG74029 | |
| 763 | Pseudocolopteryx citreola | Doradito limón | Ticking Doradito | Tyrannidae | ARG74032 | |
| 764 | Pseudocolopteryx dinelliana | Doradito pardo | Dinelli's Doradito | Tyrannidae | ARG74030 | |
| 765 | Pseudocolopteryx flaviventris | Doradito común | Warbling Doradito | Tyrannidae | ARG74031 | |
| 766 | Pseudocolopteryx sclateri | Doradito copetón | Crested Doradito | Tyrannidae | ARG74028 | |
| 767 | Pseudoleistes guirahuro | Pecho amarillo grande | Yellow-rumped Marshbird | Icteridae | ARG94014 | |
| 768 | Pseudoleistes virescens | Pecho amarillo chico | Brown-and-yellow Marshbird | Icteridae | ARG94015 | |
| 769 | Pseudosaltator rufiventris | Pepitero colorado | Rufous-bellied Mountain-Tanager | Thraupidae | ARG90013 | |
| 770 | Pseudoseisura gutturalis | Cacholote pardo | White-throated Cacholote | Furnariidae | ARG73087 |
|
| 771 | Pseudoseisura lophotes | Cacholote castaño | Brown Cacholote | Furnariidae | ARG73086 | |
| 772 | Psilopsiagon aurifrons | Catita serrana chica | Mountain Parakeet | Psittacidae | ARG66002 | |
| 773 | Psilopsiagon aymara | Catita serrana grande | Gray-hooded Parakeet | Psittacidae | ARG66001 | |
| 774 | Psilorhamphus guttatus | Gallito overo | Spotted Bamboowren | Rhinocryptidae | ARG71001 | |
| 775 | Psittacara leucophthalmus | Calancate ala roja | White-eyed Parakeet | Psittacidae | ARG66027 | |
| 776 | Psittacara mitratus | Calancate cara roja | Mitred Parakeet | Psittacidae | ARG66026 | |
| 777 | Pterodroma incerta | Petrel cabeza parda | Atlantic Petrel | Procellariidae | ARG22009 | |
| 778 | Pterodroma lessonii | Petrel cabeza blanca | White-headed Petrel | Procellariidae | ARG22010 | |
| 779 | Pterodroma mollis | Petrel collar gris | Soft-plumaged Petrel | Procellariidae | ARG22008 | |
| 780 | Pteroglossus bailloni | Arasarí banana | Saffron Tou-canet | Ramphastidae | ARG62004 | |
| 781 | Pteroglossus castanotis | Arasarí fajado | Chestnut-eared Aracari | Ramphastidae | ARG62005 | |
| 782 | Pteroptochos castaneus | Huet-huet castaño | Chestnut-throated Huet-huet | Rhinocryptidae | ARG71004 | |
| 783 | Pteroptochos tarnii | Huet-huet | Black-throated Huet-huet | Rhinocryptidae | ARG71005 | |
| 784 | Puffinus puffinus | Pardela boreal | Manx Shearwater | Procellariidae | ARG22024 | |
| 785 | Pufíinus assimilis | Pardela chica | Little Shearwater | Procellariidae | ARG22025 | |
| 786 | Pulsatrix koeniswaldiana | Lechuzón mocho chico | Tawny-browed Owl | Strigidae | ARG53006 | |
| 787 | Pulsatrix perspicillata | Lechuzón mocho grande | Spectacled Owl | Strigidae | ARG53005 | |
| 788 | Pygarrhichas albogularis | Picolezna patagónico | White-throated Treerunner | Furnariidae | ARG73022 |
|
| 789 | Pygochelidon cyanoleuca | Golondrina barranquera | Blue-and-white Swallow | Hirundinidae | ARG81001 | |
| 790 | Pygochelidon melanoleuca | Golondrina de collar | Black-collared Swallow | Hirundinidae | ARG81002 | |
| 791 | Pygoscelis adelie | Pingüino ojo blanco | Adelie Penguin | Spheniscidae | ARG20005 | |
| 792 | Pygoscelis antarcticus | Pingüino de barbijo | Chinstrap Penguin | Spheniscidae | ARG20004 | |
| 793 | Pygoscelis papua | Pingüino de vincha | Gentoo Penguin | Spheniscidae | ARG20003 | |
| 794 | Pyriglena leucoptera | Batará negro | White-shouldered Fire-eye | Thamnophilidae | ARG67017 | |
| 795 | Pyrocephalus rubinus | Churrinche | Vermilion Flycatcher | Tyrannidae | ARG74064 |
|
| 796 | Pyroderus scutatus | Yacutoro | Red-ruffed Fruitcrow | Cotingidae | ARG76003 | |
| 797 | Pyrrhomyias cinnamomeus | Birro chico | Cinnamon Flycatcher | Tyrannidae | ARG74056 | |
| 798 | Pyrrhura frontalis | Chiripepé cabeza verde | Maroon-bellied Parakeet | Psittacidae | ARG66013 | |
| 799 | Pyrrhura molinae | Chiripepé cabeza parda | Green-cheeked Parakeet | Psittacidae | ARG66014 | |
| 800 | Rallus antarcticus | Gallineta chica | Austral Rail | Rallidae | ARG36002 | |
| 801 | Ramphastos dicolorus | Tucán pico verde | Red-breasted Toucan | Ramphastidae | ARG62002 | |
| 802 | Ramphastos toco | Tucán grande | Toco Toucan | Ramphastidae | ARG62001 | |
| 803 | Ramphocelus carbo | Fueguero oscuro | Silver-beaked Tanager | Thraupidae | ARG90012 | |
| 804 | Ramphotrigon megacephalum | Picochato cabezón | Large-headed Flatbill | Tyrannidae | ARG74129 | |
| 805 | Recurvirostra andina | Avoceta andina | Andean Avocet | Recurvirostridae | ARG40002 | |
| 806 | Rhea americana | Ñandú | Greater Rhea | Rheidae | ARG11001 | |
| 807 | Rhea pennata | Choique | Lesser Rhea | Rheidae | ARG11002 | |
| 808 | Rhinocrypta lanceolata | Gallito copetón | Crested Gallito | Rhinocryptidae | ARG71002 |
|
| 809 | Rhopospina fruticeti | Yal negro | Mourning Sierra-Finch | Thraupidae | ARG90033 | |
| 810 | Rhynchospiza strigiceps | Cachilo corona castaña | Stripe-capped Sparrow | Emberizidae | ARG91002 | |
| 811 | Rhynchotus maculicollis | Guaipo | Huayco Tinamou | Tinamidae | ARG12007 | |
| 812 | Rhynchotus rufescens | Colorada | Red-winged Tinamou | Tinamidae | ARG12006 | |
| 813 | Riparia riparia | Golondrina zapadora | Bank Swallow | Hirundinidae | ARG81013 | |
| 814 | Rollandia rolland | Macá común | White-tufted Grebe | Podicipedidae | ARG18001 | |
| 815 | Rostrhamus sociabilis | Caracolero | Snail Kite | Accipitridae | ARG34013 | |
| 816 | Rupomis magnirostns | Taguató | Roadside Hawk | Accipitridae | ARG34029 | |
| 817 | Rynchops niger | Rayador | Black Skimmer | Rynchopidae | ARG49001 | |
| 818 | Saltator aurantiirostris | Pepitero de collar | Golden-billed Saltator | Thraupidae | ARG90099 | |
| 819 | Saltator coerulescens | Pepitero gris | Grayish Saltator | Thraupidae | ARG90096 | |
| 820 | Saltator fuliginosus | Pepitero negro | Black-throated Grosbeak | Thraupidae | ARG90100 | |
| 821 | Saltator maxillosus | Pepitero picudo | Thick-billed Saltator | Thraupidae | ARG90098 | |
| 822 | Saltator similis | Pepitero verdoso | Green-winged Saltator | Thraupidae | ARG90097 | |
| 823 | Saltatricula multicolor | Pepitero chico | Many-colored Chaco Finch | Thraupidae | ARG90095 | |
| 824 | Sappho sparganurus | Picaflor cometa | Red-tailed Comet | Trochilidae | ARG57013 | |
| 825 | Sarcoramphus papa | Jote real | King Vulture | Cathartidae | ARG32005 | |
| 826 | Sarkidiornis sylvicola | Pato crestudo | Comb Duck | Anatidae | ARG14014 | |
| 827 | Satrapa icterophrys | Suirirí amarillo | Yellow-browed Tyrant | Tyrannidae | ARG74073 |
|
| 828 | Sayornis nigricans | Viudita de río | Black Phoebe | Tyrannidae | ARG74063 | |
| 829 | Scelorchilus rubecula | Chucao | Chucao Tapaculo | Rhinocryptidae | ARG71006 | |
| 830 | Schiffornis virescens | Bailarín oliváceo | Greenish Schiffornis | Tityridae | ARG78004 | |
| 831 | Schistochlamys ruficapillus | Frutero canela | Cinnamon Tanager | Thraupidae | ARG90003 | |
| 832 | Schoeniophylax phryganophilus | Chotoy | Chotoy Spinetail | Furnariidae | ARG73088 | |
| 833 | Sclerurus scansor | Raspahojas | Rufous-breasted Leaftosser | Furnariidae | ARG73001 | |
| 834 | Scytalopus magellanicus | Churrín andino | Magellanic Tapaculo | Rhinocryptidae | ARG71009 | |
| 835 | Scytalopus pachecoi | Churrín plomizo | Planalto Tapaculo | Rhinocryptidae | ARG71008 | |
| 836 | Scytalopus superciliaris | Churrín ceja blanca | White-browed Tapaculo | Rhinocryptidae | ARG71011 | |
| 837 | Scytalopus zimmeri | Churrín quebradeño | Zimmer's Tapaculo | Rhinocryptidae | ARG71010 | |
| 838 | Selenidera maculirostris | Arasarí chico | Spot-billed Toucanet | Ramphastidae | ARG62003 | |
| 839 | Sephanoides sephaniodes | Picaflor rubí | Green-backed Firecrown | Trochilidae | ARG57010 | |
| 840 | Serpophaga griseicapilla | Piojito de Straneck | Straneck's Tyrannulet | Tyrannidae | ARG74024 | |
| 841 | Serpophaga munda | Piojito vientre blanco | White-bellied Tyrannulet | Tyrannidae | ARG74023 | |
| 842 | Serpophaga nigricans | Piojito gris | Sooty Tyrannulet | Tyrannidae | ARG74021 | |
| 843 | Serpophaga subcristata | Piojito común | White-crested Tyrannulet | Tyrannidae | ARG74022 |
|
| 844 | Setopagis parvula | Atajacaminos chico | Little Nightjar | Caprimulgidae | ARG55010 | |
| 845 | Setophaga pitiayumi | Pitiayumí | Tropical Parula | Parulidae | ARG93002 | |
| 846 | Setophaga striata | Arañero estriado | Blackpoll Warbler | Parulidae | ARG93003 | |
| 847 | Sicalis auriventris | Jilguero grande | Greater Yellow-Finch | Thraupidae | ARG90062 | |
| 848 | Sicalis citrina | Jilguero cola blanca | Stripe-tailed Yellow-Finch | Thraupidae | ARG90058 | |
| 849 | Sicalis flaveola | Jilguero dorado | Saffron Finch | Thraupidae | ARG90066 | |
| 850 | Sicalis lebruni | Jilguero austral | Patagonian Yellow-Finch | Thraupidae | ARG90065 | |
| 851 | Sicalis lutea | Jilguero puneño | Puna Yellow-Finch | Thraupidae | ARG90059 | |
| 852 | Sicalis luteocephala | Jilguero corona gris | Citron-headed Yellow-Finch | Thraupidae | ARG90061 | |
| 853 | Sicalis luteola | Misto | Grassland Yellow-Finch | Thraupidae | ARG90067 | |
| 854 | Sicalis mendozae | Jilgero del monte | Monte Yellow-Finch | Thraupidae | ARG90064 | |
| 855 | Sicalis olivascens | Jilguero oliváceo | Greenish Yellow-Finch | Thraupidae | ARG90063 | |
| 856 | Sicalis uropygialis | Jilguero cara gris | Bright-rumped Yellow-Finch | Thraupidae | ARG90060 | |
| 857 | Sirystes sibilator | Suirirí silbón | Sibilant Sirystes | Tyrannidae | ARG74123 | |
| 858 | Sittasomus griseicapillus | Tarefero | Olivaceous Woodcreeper | Furnariidae | ARG73008 | |
| 859 | Spartonoica maluroides | Espartillero enano | Bay-capped Wren-Spinetail | Furnariidae | ARG73085 | |
| 860 | Spatula cyanoptera | Pato colorado | Cinnamon Teal | Anatidae | ARG14031 | |
| 861 | Spatula discors | Pato media luna | Blue-winged Teal | Anatidae | ARG14030 | |
| 862 | Spatula puna | Pato puneño | Puna Teal | Anatidae | ARG14028 | |
| 863 | Spatula versicolor | Pato capuchino | Silver Teal | Anatidae | ARG14029 | |
| 864 | Speculanas specularis | Pato de anteojos | Spectacled Duck | Anatidae | ARG14023 | |
| 865 | Spheniscus magellanicus | Pingüino patagónico | Magellanic Penguin | Spheniscidae | ARG20006 | |
| 866 | Spinus atratus | Negrillo | Black Siskin | Fringillidae | ARG95005 | |
| 867 | Spinus barbatus | Cabecitanegra austral | Black-chinned Siskin | Fringillidae | ARG95007 | |
| 868 | Spinus crassirostris | Cabecitanegra picudo | Thick-billed Siskin | Fringillidae | ARG95003 | |
| 869 | Spinus magellanicus | Cabecitanegra común | Hooded Siskin | Fringillidae | ARG95004 | |
| 870 | Spinus uropygialis | Cabecitanegra andino | Yellow-rumped Siskin | Fringillidae | ARG95006 | |
| 871 | Spizaetus isidori | Aguila poma | Black-and-chestnut Eagle | Accipitridae | ARG34011 | |
| 872 | Spizaetus melanoleucus | Aguila viuda | Black-and-white Hawk-Eagle | Accipitridae | ARG34009 | |
| 873 | Spizaetus ornatus | Aguila crestuda real | Ornate Hawk-Eagle | Accipitridae | ARG34010 | |
| 874 | Spizaetus tyrannus | Aguila crestuda negra | Black Hawk-Eagle | Accipitridae | ARG34008 | |
| 875 | Spiziapteryx circumcincta | Halconcito gris | Spot-winged Falconet | Falconidae | ARG65004 | |
| 876 | Sporophila angolensis | Curió | Chestnut-bellied Seed-Finch | Thraupidae | ARG90080 | |
| 877 | Sporophila caerulescens | Corbatita común | Double-collared Seedeater | Thraupidae | ARG90082 | |
| 878 | Sporophila cinnamomea | Capuchino corona gris | Chestnut Seedeater | Thraupidae | ARG90079 | |
| 879 | Sporophila collaris | Corbatita dominó | Rusty-collared Seedeater | Thraupidae | ARG90085 | |
| 880 | Sporophila falcirostris | Corbatita picudo | Temminck's Seedeater | Thraupidae | ARG90083 | |
| 881 | Sporophila frontalis | Corbatita oliváceo | Buffy-fronted Seedeater | Thraupidae | ARG90084 | |
| 882 | Sporophila hypochroma | Capuchino castaño | Rufous-rumped Seedeater | Thraupidae | ARG90078 | |
| 883 | Sporophila hypoxantha | Capuchino canela | Tawny-bellied Seedeater | Thraupidae | ARG90075 | |
| 884 | Sporophila iberaensis | Capuchino iberá | Iberá seedeater | Thraupidae | ARG90086 | |
| 885 | Sporophila leucoptera | Corbatita blanco | White-bellied Seedeater | Thraupidae | ARG90073 | |
| 886 | Sporophila lineola | Corbatita overo | Lined Seedeater | Thraupidae | ARG90072 | |
| 887 | Sporophila nigricollis | Corbatita amarillo | Yellow-bellied Seedeater | Thraupidae | ARG90081 | |
| 888 | Sporophila palustris | Capuchino pecho blanco | Marsh Seedeater | Thraupidae | ARG90077 | |
| 889 | Sporophila pileata | Capuchino boina negra | Pearly-bellied Seedeater | Thraupidae | ARG90074 | |
| 890 | Sporophila ruficollis | Capuchino garganta café | Dark-throated Seedeater | Thraupidae | ARG90076 | |
| 891 | Stelgidopteryx ruficollis | Golondrina ribereña | Southern Roughwinged Swallow | Hirundinidae | ARG81005 | |
| 892 | Stephanophorus diadematus | Frutero azul | Diademed Tanager | Thraupidae | ARG90014 | |
| 893 | Stephanoxis loddigesii | Picaflor copetón | Purple-crowned Plovercrest | Trochilidae | ARG57025 | |
| 894 | Stercorarius antarcticus | Escúa parda | Brown Skua | Stercorariidae | ARG47003 | |
| 895 | Stercorarius chilensis | Escúa comun | Chilean Skua | Stercorariidae | ARG47001 | |
| 896 | Stercorarius longicaudus | Salteador coludo | Long-tailed Jaeger | Stercorariidae | ARG47006 | |
| 897 | Stercorarius maccormicki | Escúa polar | South Polar Skua | Stercorariidae | ARG47002 | |
| 898 | Stercorarius parasiticus | Salteador chico | Parasitic Jaeger | Stercorariidae | ARG47005 | |
| 899 | Stercorarius pomarinus | Salteador grande | Pomarine Jaeger | Stercorariidae | ARG47004 | |
| 900 | Sterna dougallii | Gaviotín rosado | Roseate Tern | Laridae | ARG48014 | |
| 901 | Sterna forsteri | Gaviotín de Forster | Forster's Tern | Laridae | ARG48018 | |
| 902 | Sterna hirundinacea | Gaviotín sudamericano | South American Tern | Laridae | ARG48016 | |
| 903 | Sterna hirundo | Gaviotín golondrina | Common Tern | Laridae | ARG48013 | |
| 904 | Sterna paradisaea | Gaviotín ártico | Arctic Tern | Laridae | ARG48015 | |
| 905 | Sterna trudeaui | Gaviotín lagunero | Snowy-crowned Tern | Laridae | ARG48019 | |
| 906 | Sterna vittata | Gaviotín antártico | Antarctic Tern | Laridae | ARG48017 | |
| 907 | Sternula antillarum | Gaviotín chico boreal | Least Tern | Laridae | ARG48008 | |
| 908 | Sternula superciliaris | Gaviotín chico común | Yellow-billed Tern | Laridae | ARG48009 | |
| 909 | Stigmatura budytoides | Calandrita | Greater Wagtail-Tyrant | Tyrannidae | ARG74035 | |
| 910 | Stilpnia cayana | Saíra pecho negro | Burnished-buff Tanager | Thraupidae | ARG90020 | |
| 911 | Stilpnia preciosa | Saíra castaña | Chestnut-backed Tanager | Thraupidae | ARG90019 | |
| 912 | Streptoprocne biscutata | Vencejo nuca blanca | Biscutate Swift | Apodidae | ARG56005 | |
| 913 | Streptoprocne zonaris | Vencejo de collar | White-collared Swift | Apodidae | ARG56004 | |
| 914 | Strix chacoensis | Lechuza chaqueña | Chaco Owl | Strigidae | ARG53010 | |
| 915 | Strix hylophila | Lechuza listada | Rusty-barred Owl | Strigidae | ARG53009 | |
| 916 | Strix rufipes | Lechuza bataraz | Rufous-legged Owl | Strigidae | ARG53011 | |
| 917 | Sturnus vulgaris | Estornino pinto | European Starling | Sturnidae | ARG88002 | |
| 918 | Sublegatus modestus | Suirirí pico corto | Southern ScrubFlycatcher | Tyrannidae | ARG74042 | |
| 919 | Suiriri suiriri | Suirirí común | Suiriri Flycatcher | Tyrannidae | ARG74016 | |
| 920 | Sula leucogaster | Piquero pardo | Brown Booby | Sulidae | ARG26001 | |
| 921 | Sylviorthorhynchus desmursii | Colilarga | Des Murs's Wiretail | Furnariidae | ARG73054 | |
| 922 | Sylviorthorhynchus yanacensis | Coludito puneño | Tawny Tit-Spinetail | Furnariidae | ARG73056 | |
| 923 | Synallaxis albescens | Pijuí cola parda | Pale-breasted Spinetail | Furnariidae | ARG73094 | |
| 924 | Synallaxis azarae | Pijuí ceja canela | Azara's Spinetail | Furnariidae | ARG73096 | |
| 925 | Synallaxis cinerascens | Pijuí negruzco | Gray-bellied Spinetail | Furnariidae | ARG73091 | |
| 926 | Synallaxis frontalis | Pijuí frente gris | Sooty-fronted Spinetail | Furnariidae | ARG73095 | |
| 927 | Synallaxis ruficapilla | Pijuí corona rojiza | Rufous-capped Spinetail | Furnariidae | ARG73092 | |
| 928 | Synallaxis scutata | Pijuí canela | Ochre-cheeked Spinetail | Furnariidae | ARG73090 |
|
| 929 | Synallaxis spixi | Pijuí plomizo | Spix's Spinetail | Furnariidae | ARG73093 | |
| 930 | Syndactyla rufosuperciliata | Ticotico común | Buff-browed Foliage-gleaner | Furnariidae | ARG73049 | |
| 931 | Syrigma sibilatrix | Chiflón | Whistling Heron | Ardeidae | ARG30012 | |
| 932 | Systellura longirostris | Atajacaminos ñañarca | Band-winged Nightjar | Caprimulgidae | ARG55006 | |
| 933 | Tachornis squamata | Vencejo tijereta | Forl-tailed Palm Swift | Apodidae | ARG56009 | |
| 934 | Tachuris rubrigastra | Tachurí sietecolores | Many-colored Rush Tyrant | Tyrannidae | ARG74044 |
|
| 935 | Tachybaptus dominicus | Macá gris | Least Grebe | Podicipedidae | ARG18002 | |
| 936 | Tachycineta albiventer | Golondrina ala blanca | White-winged Swallow | Hirundinidae | ARG81010 | |
| 937 | Tachycineta leucopyga | Golondrina patagónica | Chilean Swallow | Hirundinidae | ARG81012 | |
| 938 | Tachycineta leucorrhoa | Golondrina ceja blanca | White-rumped Swallow | Hirundinidae | ARG81011 | |
| 939 | Tachyeres leucocephalus | Quetro cabeza blanca | White-headed Steamer-Duck | Anatidae | ARG14021 | |
| 940 | Tachyeres patachonicus | Quetro volador | Flying Steamer-Duck | Anatidae | ARG14018 | |
| 941 | Tachyeres pteneres | Quetro austral | Flightless Steamer-Duck | Anatidae | ARG14019 | |
| 942 | Tachyeres trachypterus | Quetro malvinero | Falkland Steamer-Duck | Anatidae | ARG14020 | |
| 943 | Tachyphonus coronatus | Frutero coronado | Ruby-crowned Tanager | Thraupidae | ARG90010 | |
| 944 | Tachyphonus rufus | Frutero negro | White-lined Tanager | Thraupidae | ARG90011 | |
| 945 | Tangara seledon | Saíra arcoiris | Green-headed Tanager | Thraupidae | ARG90021 | |
| 946 | Tapera naevia | Crespín | Striped Cuckoo | Cuculidae | ARG51005 | |
| 947 | Taraba major | Chororó | Great Antshrike | Thamnophilidae | ARG67005 | |
| 948 | Tarphonomus certhioides | Bandurrita chaqueña | Chaco Earthcreeper | Furnariidae | ARG73027 | |
| 949 | Tarphonomus harterti | Bandurrita boliviana | Bolivian Earthcreeper | Furnariidae | ARG73026 | |
| 950 | Teledromas fuscus | Gallito arena | Sandy Gallito | Rhinocryptidae | ARG71003 | |
| 951 | Terenura maculata | Tiluchí enano | Streak-capped Antwren | Thamnophilidae | ARG67016 | |
| 952 | Tersina viridis | Tersina | Swallow Tanager | Thraupidae | ARG90022 | |
| 953 | Thalassarche bulleri | Albatros del Pacífico | Buller's Albatross | Diomedeidae | ARG21010 | |
| 954 | Thalassarche cauta | Albatros corona blanca | White-capped Albatross | Diomedeidae | ARG21011 | |
| 955 | Thalassarche chlororhynchos | Albatros pico fino | Yellow-nosed Albatross | Diomedeidae | ARG21007 | |
| 956 | Thalassarche chrysostoma | Albatros cabeza gris | Gray-headed Albatross | Diomedeidae | ARG21009 | |
| 957 | Thalassarche melanophris | Albatros ceja negra | Black-browed Albatross | Diomedeidae | ARG21008 | |
| 958 | Thalasseus maximus | Gaviotín real | Royal Tern | Laridae | ARG48021 | |
| 959 | Thalasseus sandvicensis | Gaviotín pico negro | Sandwich Tern | Laridae | ARG48020 | |
| 960 | Thalassoica antarctica | Petrel antártico | Antarctic Petrel | Procellariidae | ARG22004 | |
| 961 | Thalurania furcata | Picaflor zafiro | Fork-tailed Woodnymph | Trochilidae | ARG57027 | |
| 962 | Thalurania glaucopis | Picaflor corona violácea | Violet-capped Woodnymph | Trochilidae | ARG57028 | |
| 963 | Thamnophilus caerulescens | Choca común | Variable Antshrike | Thamnophilidae | ARG67009 |
|
| 964 | Thamnophilus doliatus | Choca listada | Barred Antshrike | Thamnophilidae | ARG67007 | |
| 965 | Thamnophilus ruficapillus | Choca corona rojiza | Rufous-capped Antshrike | Thamnophilidae | ARG67008 | |
| 966 | Thectocercus acuticaudatus | Calancate cabeza azul | Blue-crowned Parakeet | Psittacidae | ARG66025 | |
| 967 | Theristicus caerulescens | Bandurria mora | Plumbeous Ibis | Threskiornithidae | ARG31005 | |
| 968 | Theristicus caudatus | Bandurria boreal | Buff-necked Ibis | Threskiornithidae | ARG31006 | |
| 969 | Theristicus melanopis | Bandurria austral | Black-faced Ibis | Threskiornithidae | ARG31007 | |
| 970 | Thinocorus orbignyianus | Agachona de collar | Gray-breasted Seedsnipe | Thinocoridae | ARG44003 | |
| 971 | Thinocorus rumicivorus | Agachona chica | Least Seedsnipe | Thinocoridae | ARG44004 | |
| 972 | Thlypopsis pyrrhocoma | Pioró | Chestnutheaded Tanager | Thraupidae | ARG90008 | |
| 973 | Thlypopsis ruficeps | Tangará alisero | Rust-and-yellow Tanager | Thraupidae | ARG90007 | |
| 974 | Thlypopsis sordida | Tangará gris | Orange-headed Tanager | Thraupidae | ARG90006 | |
| 975 | Thraupis palmarum | Celestino olivaceo | Palm Tanager | Thraupidae | ARG90018 | |
| 976 | Thraupis sayaca | Celestino común | Sayaca Tanager | Thraupidae | ARG90017 | |
| 977 | Tigrisoma fasciatum | Hocó oscuro | Fasciated Tiger-Heron | Ardeidae | ARG30002 | |
| 978 | Tigrisoma lineatum | Hocó colorado | Rufescent Tiger-Heron | Ardeidae | ARG30001 | |
| 979 | Tinamotis ingoufi | Quiula patagónica | Patagonian Tinamou | Tinamidae | ARG12016 | |
| 980 | Tinamotis pentlandii | Quiula puneña | Puna Tinamou | Tinamidae | ARG12015 | |
| 981 | Tinamus solitarius | Macuco | Solitary Tinamou | Tinamidae | ARG12001 | |
| 982 | Tityra cayana | Tueré grande | Black-tailed Tityra | Tityridae | ARG78002 | |
| 983 | Tityra inquisitor | Tueré chico | Black-crowned Tityra | Tityridae | ARG78001 | |
| 984 | Tityra semifasciata | Tueré enmascarado | Masked Tityra | Tityridae | ARG78003 | |
| 985 | Todirostrum cinereum | Mosqueta amarilla | Common Tody-Flycatcher | Tyrannidae | ARG74051 | |
| 986 | Tolmomyias sulphurescens | Picochato grande | Yellow-olive Flycatcher | Tyrannidae | ARG74052 | |
| 987 | Trichothraupis melanops | Frutero corona amarilla | Black-goggled Tanager | Thraupidae | ARG90009 | |
| 988 | Tringa flavipes | Pitotoy chico | Lesser Yellowlegs | Scolopacidae | ARG43029 | |
| 989 | Tringa melanoleuca | Pitotoy grande | Greater Yellowlegs | Scolopacidae | ARG43027 | |
| 990 | Tringa semipalmata | Playero ala blanca | Willet | Scolopacidae | ARG43028 | |
| 991 | Tringa solitaria | Pitotoy solitario | Solitary Sandpiper | Scolopacidae | ARG43026 | |
| 992 | Troglodytes aedon | Ratona común | House Wren | Troglodytidae | ARG82001 | |
| 993 | Troglodytes cobbi | Ratona de Malvinas | Cobb's Wren | Troglodytidae | ARG82002 | |
| 994 | Troglodytes solstitialis | Ratona ceja blanca | Mountain Wren | Troglodytidae | ARG82003 | |
| 995 | Trogon curucui | Surucuá aurora | Blue-crowned Trogon | Trogonidae | ARG58001 | |
| 996 | Trogon rufus | Surucuá amarillo | Black-throated Trogon | Trogonidae | ARG58003 | |
| 997 | Trogon surrucura | Surucuá común | Surucua Trogon | Trogonidae | ARG58002 | |
| 998 | Turdus albicollis | Zorzal collar blanco | White-necked Thrush | Turdidae | ARG86014 | |
| 999 | Turdus amaurochalinus | Zorzal chalchalero | Creamy-bellied Thrush | Turdidae | ARG86009 | |
| 1000 | Turdus chiguanco | Zorzal chiguanco | Chiguanco Thrush | Turdidae | ARG86012 | |
| 1001 | Turdus falcklandii | Zorzal patagónico | Austral Thrush | Turdidae | ARG86004 | |
| 1002 | Turdus flavipes | Zorzal azulado | Yellow-legged Thrush | Turdidae | ARG86005 | |
| 1003 | Turdus fumigatus | Zorzal chocolate | Cocoa Thrush | Turdidae | ARG86007 | |
| 1004 | Turdus leucomelas | Zorzal sabiá | Pale-breasted Thrush | Turdidae | ARG86006 | |
| 1005 | Turdus nigriceps | Zorzal herrero | Andean Slaty Thrush | Turdidae | ARG86010 | |
| 1006 | Turdus rufiventris | Zorzal colorado | Rufous-bellied Thrush | Turdidae | ARG86008 | |
| 1007 | Turdus serranus | Zorzal negro | Glossy-black Thrush | Turdidae | ARG86013 | |
| 1008 | Turdus subalaris | Zorzal plomizo | Eastern Slaty Thrush | Turdidae | ARG86011 | |
| 1009 | Tyrannus melancholicus | Suirirí real | Tropical Kingbird | Tyrannidae | ARG74120 | |
| 1010 | Tyrannus savana | Tijereta | Fork-tailed Flycatcher | Tyrannidae | ARG74121 |
|
| 1011 | Tyrannus tyrannus | Suirirí boreal | Eastern Kingbird | Tyrannidae | ARG74122 | |
| 1012 | Tyto alba | Lechuza de campanario | Barn Owl | Tytonidae | ARG52001 | |
| 1013 | Upucerthia dumetaria | Bandurrita común | Scale-throated Earthcreeper | Furnariidae | ARG73034 | |
| 1014 | Upucerthia saturatior | Bandurrita del bosque | Patagonian Forest Earthcreeper | Furnariidae | ARG73033 | |
| 1015 | Upucerthia validirostris | Bandurrita andina | Buff-breasted Earthcreeper | Furnariidae | ARG73035 | |
| 1016 | Uropsalis lyra | Atajacaminos lira | Lyre-tailed Nightjar | Caprimulgidae | ARG55009 | |
| 1017 | Vanellus cayanus | Chorlo de espolón | Pied Lapwing | Charadriidae | ARG38004 | |
| 1018 | Vanellus chilensis | Tero común | Southern Lapwing | Charadriidae | ARG38005 | |
| 1019 | Vanellus resplendens | Tero serrano | Andean Lapwing | Charadriidae | ARG38006 | |
| 1020 | Veniliornis lignarius | Carpinterito bataraz austral | Striped Woodpecker | Picidae | ARG63011 | |
| 1021 | Veniliornis mixtus | Carpinterito bataraz chico | Checkered Woodpecker | Picidae | ARG63010 | |
| 1022 | Vireo chivi | Chiví común | Red-eyed Vireo | Vireonidae | ARG79003 | |
| 1023 | Volatinia jacarina | Volatinero | Blue-black Grassquit | Thraupidae | ARG90071 | |
| 1024 | Vultur gryphus | Cóndor andino | Andean Condor | Cathartidae | ARG32006 | |
| 1025 | Xanthopsar flavus | Tordo amarillo | Saffron-cowled Blackbird | Icteridae | ARG94013 | |
| 1026 | Xenops minutus | Picolezna chico | Plain Xenops | Furnariidae | ARG73020 | |
| 1027 | Xenops rutilans | Picolezna rojizo | Streaked Xenops | Furnariidae | ARG73021 | |
| 1028 | Xenopsaris albinucha | Tijerilla | White-naped Xenopsaris | Tityridae | ARG78005 | |
| 1029 | Xiphocolaptes albicollis | Trepador garganta blanca | White-throated Woodcreeper | Furnariidae | ARG73012 | |
| 1030 | Xiphocolaptes major | Trepador gigante | Great Rufous Woodcreeper | Furnariidae | ARG73013 | |
| 1031 | Xiphorhynchus fuscus | Chinchero enano | Lesser Woodcreeper | Furnariidae | ARG73014 | |
| 1032 | Xolmis cinereus | Monjita cenicienta | Gray Monjita | Tyrannidae | ARG74089 | |
| 1033 | Xolmis coronatus | Monjita coronada | Black-crowned Monjita | Tyrannidae | ARG74090 | |
| 1034 | Xolmis dominicanus | Monjita dominica | Black-and-white Monjita | Tyrannidae | ARG74094 | |
| 1035 | Xolmis irupero | Monjita blanca | White Monjita | Tyrannidae | ARG74091 | |
| 1036 | Xolmis pyrope | Diucón | Fire-eyed Diucon | Tyrannidae | ARG74088 | |
| 1037 | Xolmis rubetra | Monjita castaña | Rusty-backed Monjita | Tyrannidae | ARG74093 | |
| 1038 | Xolmis salinarum | Monjita salinera | Salinas Monjita | Tyrannidae | ARG74092 | |
| 1039 | Zenaida auriculata | Torcaza común | Eared Dove | Columbidae | ARG50016 | |
| 1040 | Zenaida meloda | Torcaza ala blanca | West Peruvian Dove | Columbidae | ARG50015 | |
| 1041 | Zentrygon frenata | Paloma montera grande | White-throated Quail-Dove | Columbidae | ARG50014 | |
| 1042 | Zonotrichia capensis | Chingolo | Rufous-collared Sparrow | Emberizidae | ARG91006 | |