| Rheas: Rheidae |
| 1 | Greater Rhea | Rhea americana |
| Tinamous: Tinamidae |
| 2 | Spotted Nothura | Nothura maculosa |
| 3 | Red-winged Tinamou | Rhynchotus rufescens |
| Screamers: Anhimidae |
| 4 | Southern Screamer | Chauna torquata |
| Ducks: Anatidae |
| 5 | White-faced Whistling-Duck | Dendrocygna viduata |
| 6 | Fulvous Whistling-Duck | Dendrocygna bicolor |
| 7 | Black-necked Swan | Cygnus melancoryphus |
| 8 | Coscoroba Swan | Coscoroba coscoroba |
| 9 | Ringed Teal | Callonetta leucophrys |
| 10 | Brazilian Teal | Amazonetta brasiliensis |
| 11 | Silver Teal | Spatula versicolor |
| 12 | Cinnamon Teal | Spatula cyanoptera |
| 13 | Red Shoveler | Spatula platalea |
| 14 | Chiloe Wigeon | Mareca sibilatrix |
| 15 | White-cheeked Pintail | Anas bahamensis |
| 16 | Yellow-billed Pintail | Anas georgica |
| 17 | Yellow-billed Teal | Anas flavirostris |
| 18 | Rosy-billed Pochard | Netta peposaca |
| 19 | Black-headed Duck | Heteronetta atricapilla |
| 20 | Lake Duck | Oxyura vittata |
| Pigeons and Doves: Columbidae |
| 21 | Rock Pigeon | Columba livia |
| 22 | Picazuro Pigeon | Patagioenas picazuro |
| 23 | Spot-winged Pigeon | Patagioenas maculosa |
| 24 | Picui Ground Dove | Columbina picui |
| 25 | White-tipped Dove | Leptotila verreauxi |
| 26 | Eared Dove | Zenaida auriculata |
| Cuckoos: Cuculidae |
| 27 | Guira Cuckoo | Guira guira |
| 28 | Dark-billed Cuckoo | Coccyzus melacoryphus |
| Nightjars and Allies: Caprimulgidae |
| 29 | Band-winged Nightjar | Systellura longirostris |
| 30 | Scissor-tailed Nightjar | Hydropsalis torquata |
| Hummingbirds: Trochilidae |
| 31 | Glittering-bellied Emerald | Chlorostilbon lucidus |
| 32 | White-throated Hummingbird | Leucochloris albicollis |
| 33 | Gilded Hummingbird | Hylocharis chrysura |
| Rails, Gallinules, and Coots: Rallidae |
| 34 | Plumbeous Rail | Pardirallus sanguinolentus |
| 35 | Giant Wood-Rail | Aramides ypecaha |
| 36 | Gray-cowled Wood-Rail | Aramides cajaneus |
| 37 | Spot-flanked Gallinule | Porphyriops melanops |
| 38 | Common Gallinule | Gallinula galeata |
| 39 | Red-fronted Coot | Fulica rufifrons |
| 40 | Red-gartered Coot | Fulica armillata |
| 41 | White-winged Coot | Fulica leucoptera |
| 42 | Red-and-white Crake | Rufirallus leucopyrrhus |
| 43 | Rufous-sided Crake | Laterallus melanophaius |
| 44 | Dot-winged Crake | Laterallus spiloptera |
| Limpkin: Aramidae |
| 45 | Limpkin | Aramus guarauna |
| Magellanic Plover: Pluvianellidae |
| 46 | Magellanic Plover | Pluvianellus socialis |
| Sheathbills: Chionidae |
| 47 | Snowy Sheathbill | Chionis albus |
| Stilts and Avocets: Recurvirostridae |
| 48 | Black-necked Stilt | Himantopus mexicanus |
| Oystercatchers: Haematopodidae |
| 49 | American Oystercatcher | Haematopus palliatus |
| 50 | Blackish Oystercatcher | Haematopus ater |
| Plovers and Lapwings: Charadriidae |
| 51 | Black-bellied Plover | Pluvialis squatarola |
| 52 | American Golden-Plover | Pluvialis dominica |
| 53 | Tawny-throated Dotterel | Oreopholus ruficollis |
| 54 | Rufous-chested Dotterel | Zonibyx modestus |
| 55 | Semipalmated Plover | Charadrius semipalmatus |
| 56 | Southern Lapwing | Vanellus chilensis |
| 57 | Collared Plover | Anarhynchus collaris |
| 58 | Two-banded Plover | Anarhynchus falklandicus |
| Painted-Snipes: Rostratulidae |
| 59 | South American Painted-Snipe | Nycticryphes semicollaris |
| Jacanas: Jacanidae |
| 60 | Wattled Jacana | Jacana jacana |
| Sandpipers and Allies: Scolopacidae |
| 61 | Upland Sandpiper | Bartramia longicauda |
| 62 | Hudsonian Whimbrel | Numenius phaeopus |
| 63 | Eurasian Curlew | Numenius arquata |
| 64 | Hudsonian Godwit | Limosa haemastica |
| 65 | Short-billed Dowitcher | Limnodromus griseus |
| 66 | Pantanal Snipe | Gallinago paraguaiae |
| 67 | Wilson's Phalarope | Phalaropus tricolor |
| 68 | Terek Sandpiper | Xenus cinereus |
| 69 | Spotted Sandpiper | Actitis macularius |
| 70 | Solitary Sandpiper | Tringa solitaria |
| 71 | Lesser Yellowlegs | Tringa flavipes |
| 72 | Willet | Tringa semipalmata |
| 73 | Greater Yellowlegs | Tringa melanoleuca |
| 74 | Ruddy Turnstone | Arenaria interpres |
| 75 | Red Knot | Calidris canutus |
| 76 | Stilt Sandpiper | Calidris himantopus |
| 77 | Buff-breasted Sandpiper | Calidris subruficollis |
| 78 | Sanderling | Calidris alba |
| 79 | Baird's Sandpiper | Calidris bairdii |
| 80 | White-rumped Sandpiper | Calidris fuscicollis |
| 81 | Pectoral Sandpiper | Calidris melanotos |
| 82 | Semipalmated Sandpiper | Calidris pusilla |
| Skuas and Jaegers: Stercorariidae |
| 83 | Long-tailed Jaeger | Stercorarius longicaudus |
| 84 | Parasitic Jaeger | Stercorarius parasiticus |
| 85 | Pomarine Jaeger | Stercorarius pomarinus |
| 86 | Chilean Skua | Stercorarius chilensis |
| 87 | Brown Skua | Stercorarius antarcticus |
| Gulls, Terns, and Skimmers: Laridae |
| 88 | Brown-hooded Gull | Chroicocephalus maculipennis |
| 89 | Gray-hooded Gull | Chroicocephalus cirrocephalus |
| 90 | Franklin's Gull | Leucophaeus pipixcan |
| 91 | Olrog's Gull | Larus atlanticus |
| 92 | Kelp Gull | Larus dominicanus |
| 93 | Black Skimmer | Rynchops niger |
| 94 | Least Tern | Sternula antillarum |
| 95 | Yellow-billed Tern | Sternula superciliaris |
| 96 | Gull-billed Tern | Gelochelidon nilotica |
| 97 | Snowy-crowned Tern | Sterna trudeaui |
| 98 | South American Tern | Sterna hirundinacea |
| 99 | Common Tern | Sterna hirundo |
| 100 | Sandwich Tern | Thalasseus sandvicensis |
| 101 | Royal Tern | Thalasseus maximus |
| Flamingos: Phoenicopteridae |
| 102 | Chilean Flamingo | Phoenicopterus chilensis |
| 103 | Andean Flamingo | Phoenicoparrus andinus |
| Grebes: Podicipedidae |
| 104 | White-tufted Grebe | Rollandia rolland |
| 105 | Pied-billed Grebe | Podilymbus podiceps |
| 106 | Great Grebe | Podiceps major |
| 107 | Silvery Grebe | Podiceps occipitalis |
| Penguins: Spheniscidae |
| 108 | Magellanic Penguin | Spheniscus magellanicus |
| Albatrosses: Diomedeidae |
| 109 | Black-browed Albatross | Thalassarche melanophris |
| Southern Storm-Petrels: Oceanitidae |
| 110 | Wilson's Storm-Petrel | Oceanites oceanicus |
| Shearwaters and Petrels: Procellariidae |
| 111 | Southern Giant-Petrel | Macronectes giganteus |
| 112 | Northern Giant-Petrel | Macronectes halli |
| 113 | Southern Fulmar | Fulmarus glacialoides |
| 114 | White-chinned Petrel | Procellaria aequinoctialis |
| 115 | Great Shearwater | Ardenna gravis |
| 116 | Sooty Shearwater | Ardenna griseus |
| 117 | Manx Shearwater | Puffinus puffinus |
| Storks: Ciconiidae |
| 118 | Maguari Stork | Ciconia maguari |
| 119 | Wood Stork | Mycteria americana |
| Frigatebirds: Fregatidae |
| 120 | Magnificent Frigatebird | Fregata magnificens |
| Cormorants and Shags: Phalacrocoracidae |
| 121 | Neotropic Cormorant | Nannopterum brasilianus |
| Ibises and Spoonbills: Threskiornithidae |
| 122 | White-faced Ibis | Plegadis chihi |
| 123 | Bare-faced Ibis | Phimosus infuscatus |
| 124 | Black-faced Ibis | Theristicus melanopis |
| 125 | Roseate Spoonbill | Platalea ajaja |
| Herons, Egrets, and Bitterns: Ardeidae |
| 126 | Stripe-backed Bittern | Botaurus involucris |
| 127 | Black-crowned Night Heron | Nycticorax nycticorax |
| 128 | Whistling Heron | Syrigma sibilatrix |
| 129 | Snowy Egret | Egretta thula |
| 130 | Striated Heron | Butorides striata |
| 131 | Western Cattle-Egret | Bubulcus ibis |
| 132 | Great Egret | Ardea alba |
| 133 | Cocoi Heron | Ardea cocoi |
| New World Vultures: Cathartidae |
| 134 | Black Vulture | Coragyps atratus |
| 135 | Turkey Vulture | Cathartes aura |
| 136 | Lesser Yellow-headed Vulture | Cathartes burrovianus |
| Osprey: Pandionidae |
| 137 | /Osprey/ | Pandion haliaetus |
| Hawks, Eagles, and Kites: Accipitridae |
| 138 | White-tailed Kite | Elanus leucurus |
| 139 | Swallow-tailed Kite | Elanoides forficatus |
| 140 | Sharp-shinned Hawk | Accipiter striatus |
| 141 | Long-winged Harrier | Circus buffoni |
| 142 | Cinereous Harrier | Circus cinereus |
| 143 | Snail Kite | Rostrhamus sociabilis |
| 144 | Roadside Hawk | Rupornis magnirostris |
| 145 | Harris's Hawk | Parabuteo unicinctus |
| 146 | White-tailed Hawk | Geranoaetus albicaudatus |
| 147 | Variable Hawk | Geranoaetus polyosoma |
| 148 | Black-chested Buzzard-Eagle | Geranoaetus melanoleucus |
| 149 | Swainson's Hawk | Buteo swainsoni |
| Barn-Owls: Tytonidae |
| 150 | American Barn Owl | Tyto furcata |
| Owls: Strigidae |
| 151 | Burrowing Owl | Athene cunicularia |
| 152 | Striped Owl | Asio clamator |
| 153 | Short-eared Owl | Asio flammeus |
| Kingfishers: Alcedinidae |
| 154 | Ringed Kingfisher | Megaceryle torquata |
| 155 | Green Kingfisher | Chloroceryle americana |
| Woodpeckers: Picidae |
| 156 | Green-barred Woodpecker | Colaptes melanochloros |
| 157 | Campo Flicker | Colaptes campestris |
| Falcons and Caracaras: Falconidae |
| 158 | Crested Caracara | Caracara cheriway |
| 159 | Chimango Caracara | Daptrius chimango |
| 160 | American Kestrel | Falco sparverius |
| 161 | Aplomado Falcon | Falco femoralis |
| 162 | Peregrine Falcon | Falco peregrinus |
| Parrots: Psittacidae |
| 163 | Monk Parakeet | Myiopsitta monachus |
| 164 | Burrowing Parakeet | Cyanoliseus patagonus |
| Typical Antbirds: Thamnophilidae |
| 165 | Rufous-capped Antshrike | Thamnophilus ruficapillus |
| Ovenbirds and Woodcreepers: Furnariidae |
| 166 | Common Miner | Geositta cunicularia |
| 167 | Narrow-billed Woodcreeper | Lepidocolaptes angustirostris |
| 168 | Rufous Hornero | Furnarius rufus |
| 169 | Wren-like Rushbird | Phleocryptes melanops |
| 170 | Curve-billed Reedhaunter | Limnornis curvirostris |
| 171 | Scale-throated Earthcreeper | Upucerthia dumetaria |
| 172 | Buff-winged Cinclodes | Cinclodes fuscus |
| 173 | Tufted Tit-Spinetail | Leptasthenura platensis |
| 174 | Freckle-breasted Thornbird | Phacellodomus striaticollis |
| 175 | Firewood-gatherer | Anumbius annumbi |
| 176 | Hudson's Canastero | Asthenes hudsoni |
| 177 | Sulphur-bearded Reedhaunter | Limnoctites sulphuriferus |
| 178 | Bay-capped Wren-Spinetail | Spartonoica maluroides |
| 179 | Yellow-chinned Spinetail | Certhiaxis cinnamomeus |
| 180 | Chotoy Spinetail | Schoeniophylax phryganophilus |
| 181 | Sooty-fronted Spinetail | Synallaxis frontalis |
| 182 | Pale-breasted Spinetail | Synallaxis albescens |
| 183 | Spix's Spinetail | Synallaxis spixi |
| Cotingas: Cotingidae |
| 184 | White-tipped Plantcutter | Phytotoma rutila |
| Tityras and Allies: Tityridae |
| 185 | White-winged Becard | Pachyramphus polychopterus |
| Tyrant Flycatchers: Tyrannidae |
| 186 | Many-colored Rush Tyrant | Tachuris rubrigastra |
| 187 | Tufted Tit-Tyrant | Anairetes parulus |
| 188 | Bearded Tachuri | Polystictus pectoralis |
| 189 | Warbling Doradito | Pseudocolopteryx flaviventris |
| 190 | Small-billed Elaenia | Elaenia parvirostris |
| 191 | Sooty Tyrannulet | Serpophaga nigricans |
| 192 | White-crested Tyrannulet | Serpophaga subcristata |
| 193 | Straneck's Tyrannulet | Serpophaga griseicapilla |
| 194 | Bran-colored Flycatcher | Myiophobus fasciatus |
| 195 | Vermilion Flycatcher | Pyrocephalus rubinus |
| 196 | Austral Negrito | Lessonia rufa |
| 197 | Spectacled Tyrant | Hymenops perspicillatus |
| 198 | Yellow-browed Tyrant | Satrapa icterophrys |
| 199 | White Monjita | Xolmis irupero |
| 200 | Black-backed Water-Tyrant | Fluvicola albiventer |
| 201 | Black-and-white Monjita | Heteroxolmis dominicanus |
| 202 | Cattle Tyrant | Machetornis rixosa |
| 203 | Great Kiskadee | Pitangus sulphuratus |
| 204 | Streaked Flycatcher | Myiodynastes maculatus |
| 205 | Tropical Kingbird | Tyrannus melancholicus |
| 206 | Fork-tailed Flycatcher | Tyrannus savana |
| Vireos, Shrike-Babblers, and Erpornis: Vireonidae |
| 207 | Rufous-browed Peppershrike | Cyclarhis gujanensis |
| 208 | Chivi Vireo | Vireo chiri |
| Swallows: Hirundinidae |
| 209 | Bank Swallow | Riparia riparia |
| 210 | White-rumped Swallow | Tachycineta leucorrhoa |
| 211 | Chilean Swallow | Tachycineta leucopyga |
| 212 | Gray-breasted Martin | Progne chalybea |
| 213 | Southern Martin | Progne elegans |
| 214 | Brown-chested Martin | Progne tapera |
| 215 | Southern Rough-winged Swallow | Stelgidopteryx ruficollis |
| 216 | Blue-and-white Swallow | Pygochelidon cyanoleuca |
| 217 | Tawny-headed Swallow | Alopochelidon fucata |
| 218 | Barn Swallow | Hirundo rustica |
| 219 | Cliff Swallow | Petrochelidon pyrrhonota |
| Gnatcatchers: Polioptilidae |
| 220 | Masked Gnatcatcher | Polioptila dumicola |
| Wrens: Troglodytidae |
| 221 | Southern House Wren | Troglodytes musculus |
| 222 | Grass Wren | Cistothorus platensis |
| Starlings: Sturnidae |
| 223 | European Starling | Sturnus vulgaris |
| Mockingbirds and Thrashers: Mimidae |
| 224 | Patagonian Mockingbird | Mimus patagonicus |
| 225 | Chalk-browed Mockingbird | Mimus saturninus |
| 226 | White-banded Mockingbird | Mimus triurus |
| Thrushes and Allies: Turdidae |
| 227 | Creamy-bellied Thrush | Turdus amaurochalinus |
| 228 | Rufous-bellied Thrush | Turdus rufiventris |
| Old World Sparrows: Passeridae |
| 229 | House Sparrow | Passer domesticus |
| Wagtails and Pipits: Motacillidae |
| 230 | Short-billed Pipit | Anthus furcatus |
| 231 | Pampas Pipit | Anthus chacoensis |
| 232 | Correndera Pipit | Anthus correndera |
| 233 | Hellmayr's Pipit | Anthus hellmayri |
| Finches, Euphonias, and Allies: Fringillidae |
| 234 | European Greenfinch | Chloris chloris |
| 235 | European Goldfinch | Carduelis carduelis |
| 236 | Hooded Siskin | Spinus magellanicus |
| New World Sparrows: Passerellidae |
| 237 | Grassland Sparrow | Ammodramus humeralis |
| 238 | Rufous-collared Sparrow | Zonotrichia capensis |
| Troupials and Allies: Icteridae |
| 239 | White-browed Meadowlark | Leistes superciliaris |
| 240 | Long-tailed Meadowlark | Leistes loyca |
| 241 | Variable Oriole | Icterus pyrrhopterus |
| 242 | Screaming Cowbird | Molothrus rufoaxillaris |
| 243 | Shiny Cowbird | Molothrus bonariensis |
| 244 | Scarlet-headed Blackbird | Amblyramphus holosericeus |
| 245 | Grayish Baywing | Agelaioides badius |
| 246 | Unicolored Blackbird | Agelasticus cyanopus |
| 247 | Yellow-winged Blackbird | Agelasticus thilius |
| 248 | Chestnut-capped Blackbird | Chrysomus ruficapillus |
| 249 | Brown-and-yellow Marshbird | Pseudoleistes virescens |
| New World Warblers: Parulidae |
| 250 | Southern Yellowthroat | Geothlypis velata |
| 251 | Tropical Parula | Setophaga pitiayumi |
| 252 | Golden-crowned Warbler | Basileuterus culicivorus |
| Cardinals and Allies: Cardinalidae |
| 253 | Hepatic Tanager | Piranga flava |
| Tanagers and Allies: Thraupidae |
| 254 | Red-crested Cardinal | Paroaria coronata |
| 255 | Yellow-billed Cardinal | Paroaria capitata |
| 256 | Blue-and-yellow Tanager | Rauenia bonariensis |
| 257 | Sayaca Tanager | Thraupis sayaca |
| 258 | Mourning Sierra Finch | Rhopospina fruticeti |
| 259 | Long-tailed Reed Finch | Donacospiza albifrons |
| 260 | Black-and-rufous Warbling Finch | Poospiza nigrorufa |
| 261 | Gray-throated Warbling Finch | Poospiza cabanisi |
| 262 | Black-capped Warbling Finch | Poospiza melanoleuca |
| 263 | Saffron Finch | Sicalis flaveola |
| 264 | Grassland Yellow-Finch | Sicalis luteola |
| 265 | Great Pampa-Finch | Embernagra platensis |
| 266 | Blue-black Grassquit | Volatinia jacarina |
| 267 | Double-collared Seedeater | Sporophila caerulescens |
| 268 | Rusty-collared Seedeater | Sporophila collaris |
Special Birds