| 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 | Black-bellied Whistling-Duck | Dendrocygna autumnalis |
| 7 | Fulvous Whistling-Duck | Dendrocygna bicolor |
| 8 | Black-necked Swan | Cygnus melancoryphus |
| 9 | Coscoroba Swan | Coscoroba coscoroba |
| 10 | Muscovy Duck | Cairina moschata |
| 11 | Ringed Teal | Callonetta leucophrys |
| 12 | Brazilian Teal | Amazonetta brasiliensis |
| 13 | Silver Teal | Spatula versicolor |
| 14 | Cinnamon Teal | Spatula cyanoptera |
| 15 | Red Shoveler | Spatula platalea |
| 16 | Chiloe Wigeon | Mareca sibilatrix |
| 17 | Mallard | Anas platyrhynchos |
| 18 | White-cheeked Pintail | Anas bahamensis |
| 19 | Yellow-billed Pintail | Anas georgica |
| 20 | Yellow-billed Teal | Anas flavirostris |
| 21 | Rosy-billed Pochard | Netta peposaca |
| 22 | Black-headed Duck | Heteronetta atricapilla |
| 23 | Masked Duck | Nomonyx dominicus |
| Pigeons and Doves: Columbidae |
| 24 | Rock Pigeon | Columba livia |
| 25 | Picazuro Pigeon | Patagioenas picazuro |
| 26 | Spot-winged Pigeon | Patagioenas maculosa |
| 27 | Ruddy Ground Dove | Columbina talpacoti |
| 28 | Picui Ground Dove | Columbina picui |
| 29 | White-tipped Dove | Leptotila verreauxi |
| 30 | Eared Dove | Zenaida auriculata |
| Cuckoos: Cuculidae |
| 31 | Guira Cuckoo | Guira guira |
| 32 | Smooth-billed Ani | Crotophaga ani |
| 33 | Striped Cuckoo | Tapera naevia |
| 34 | Ash-colored Cuckoo | Coccycua cinerea |
| 35 | Common Squirrel-Cuckoo | Piaya cayana |
| 36 | Dark-billed Cuckoo | Coccyzus melacoryphus |
| Nightjars and Allies: Caprimulgidae |
| 37 | Nacunda Nighthawk | Chordeiles nacunda |
| 38 | Common Nighthawk | Chordeiles minor |
| 39 | Little Nightjar | Setopagis parvula |
| 40 | Band-winged Nightjar | Systellura longirostris |
| 41 | Scissor-tailed Nightjar | Hydropsalis torquata |
| Hummingbirds: Trochilidae |
| 42 | Blue-tufted Starthroat | Heliomaster furcifer |
| 43 | Glittering-bellied Emerald | Chlorostilbon lucidus |
| 44 | White-throated Hummingbird | Leucochloris albicollis |
| 45 | Gilded Hummingbird | Hylocharis chrysura |
| Rails, Gallinules, and Coots: Rallidae |
| 46 | Spotted Rail | Pardirallus maculatus |
| 47 | Plumbeous Rail | Pardirallus sanguinolentus |
| 48 | Giant Wood-Rail | Aramides ypecaha |
| 49 | Gray-cowled Wood-Rail | Aramides cajaneus |
| 50 | Spot-flanked Gallinule | Porphyriops melanops |
| 51 | Common Gallinule | Gallinula galeata |
| 52 | Red-fronted Coot | Fulica rufifrons |
| 53 | Red-gartered Coot | Fulica armillata |
| 54 | White-winged Coot | Fulica leucoptera |
| 55 | Purple Gallinule | Porphyrio martinica |
| 56 | Rufous-sided Crake | Laterallus melanophaius |
| Limpkin: Aramidae |
| 57 | Limpkin | Aramus guarauna |
| Stilts and Avocets: Recurvirostridae |
| 58 | Black-necked Stilt | Himantopus mexicanus |
| Plovers and Lapwings: Charadriidae |
| 59 | American Golden-Plover | Pluvialis dominica |
| 60 | Tawny-throated Dotterel | Oreopholus ruficollis |
| 61 | Rufous-chested Dotterel | Zonibyx modestus |
| 62 | Southern Lapwing | Vanellus chilensis |
| 63 | Collared Plover | Anarhynchus collaris |
| Painted-Snipes: Rostratulidae |
| 64 | South American Painted-Snipe | Nycticryphes semicollaris |
| Jacanas: Jacanidae |
| 65 | Wattled Jacana | Jacana jacana |
| Sandpipers and Allies: Scolopacidae |
| 66 | Upland Sandpiper | Bartramia longicauda |
| 67 | Hudsonian Godwit | Limosa haemastica |
| 68 | Pantanal Snipe | Gallinago paraguaiae |
| 69 | Wilson's Phalarope | Phalaropus tricolor |
| 70 | Spotted Sandpiper | Actitis macularius |
| 71 | Solitary Sandpiper | Tringa solitaria |
| 72 | Lesser Yellowlegs | Tringa flavipes |
| 73 | Greater Yellowlegs | Tringa melanoleuca |
| 74 | Ruff | Calidris pugnax |
| 75 | Stilt Sandpiper | Calidris himantopus |
| 76 | Buff-breasted Sandpiper | Calidris subruficollis |
| 77 | Baird's Sandpiper | Calidris bairdii |
| 78 | White-rumped Sandpiper | Calidris fuscicollis |
| 79 | Pectoral Sandpiper | Calidris melanotos |
| Gulls, Terns, and Skimmers: Laridae |
| 80 | Brown-hooded Gull | Chroicocephalus maculipennis |
| 81 | Gray-hooded Gull | Chroicocephalus cirrocephalus |
| 82 | Kelp Gull | Larus dominicanus |
| 83 | Black Skimmer | Rynchops niger |
| 84 | Yellow-billed Tern | Sternula superciliaris |
| 85 | Large-billed Tern | Phaetusa simplex |
| 86 | Gull-billed Tern | Gelochelidon nilotica |
| 87 | Snowy-crowned Tern | Sterna trudeaui |
| 88 | Arctic Tern | Sterna paradisaea |
| Flamingos: Phoenicopteridae |
| 89 | Chilean Flamingo | Phoenicopterus chilensis |
| Grebes: Podicipedidae |
| 90 | White-tufted Grebe | Rollandia rolland |
| 91 | Least Grebe | Tachybaptus dominicus |
| 92 | Pied-billed Grebe | Podilymbus podiceps |
| 93 | Great Grebe | Podiceps major |
| Storks: Ciconiidae |
| 94 | Maguari Stork | Ciconia maguari |
| 95 | Wood Stork | Mycteria americana |
| Anhingas: Anhingidae |
| 96 | Anhinga | Anhinga anhinga |
| Cormorants and Shags: Phalacrocoracidae |
| 97 | Neotropic Cormorant | Nannopterum brasilianus |
| Ibises and Spoonbills: Threskiornithidae |
| 98 | White-faced Ibis | Plegadis chihi |
| 99 | Bare-faced Ibis | Phimosus infuscatus |
| 100 | Plumbeous Ibis | Theristicus caerulescens |
| 101 | Black-faced Ibis | Theristicus melanopis |
| 102 | Roseate Spoonbill | Platalea ajaja |
| Herons, Egrets, and Bitterns: Ardeidae |
| 103 | Rufescent Tiger-Heron | Tigrisoma lineatum |
| 104 | Stripe-backed Bittern | Botaurus involucris |
| 105 | Black-crowned Night Heron | Nycticorax nycticorax |
| 106 | Whistling Heron | Syrigma sibilatrix |
| 107 | Snowy Egret | Egretta thula |
| 108 | Striated Heron | Butorides striata |
| 109 | Western Cattle-Egret | Bubulcus ibis |
| 110 | Great Egret | Ardea alba |
| 111 | Cocoi Heron | Ardea cocoi |
| New World Vultures: Cathartidae |
| 112 | Black Vulture | Coragyps atratus |
| 113 | Turkey Vulture | Cathartes aura |
| Osprey: Pandionidae |
| 114 | /Osprey/ | Pandion haliaetus |
| Hawks, Eagles, and Kites: Accipitridae |
| 115 | White-tailed Kite | Elanus leucurus |
| 116 | Sharp-shinned Hawk | Accipiter striatus |
| 117 | Long-winged Harrier | Circus buffoni |
| 118 | Cinereous Harrier | Circus cinereus |
| 119 | Snail Kite | Rostrhamus sociabilis |
| 120 | Savanna Hawk | Buteogallus meridionalis |
| 121 | Great Black Hawk | Buteogallus urubitinga |
| 122 | Roadside Hawk | Rupornis magnirostris |
| 123 | Harris's Hawk | Parabuteo unicinctus |
| 124 | White-tailed Hawk | Geranoaetus albicaudatus |
| 125 | Swainson's Hawk | Buteo swainsoni |
| Barn-Owls: Tytonidae |
| 126 | American Barn Owl | Tyto furcata |
| Owls: Strigidae |
| 127 | Tropical Screech-Owl | Megascops choliba |
| 128 | Great Horned Owl | Bubo virginianus |
| 129 | Ferruginous Pygmy-Owl | Glaucidium brasilianum |
| 130 | Burrowing Owl | Athene cunicularia |
| 131 | Short-eared Owl | Asio flammeus |
| Kingfishers: Alcedinidae |
| 132 | Ringed Kingfisher | Megaceryle torquata |
| 133 | Amazon Kingfisher | Chloroceryle amazona |
| 134 | Green Kingfisher | Chloroceryle americana |
| Woodpeckers: Picidae |
| 135 | White-barred Piculet | Picumnus cirratus |
| 136 | White Woodpecker | Melanerpes candidus |
| 137 | White-fronted Woodpecker | Melanerpes cactorum |
| 138 | Checkered Woodpecker | Veniliornis mixtus |
| 139 | Cream-backed Woodpecker | Campephilus leucopogon |
| 140 | Green-barred Woodpecker | Colaptes melanochloros |
| 141 | Campo Flicker | Colaptes campestris |
| Falcons and Caracaras: Falconidae |
| 142 | Crested Caracara | Caracara cheriway |
| 143 | Yellow-headed Caracara | Daptrius chimachima |
| 144 | Chimango Caracara | Daptrius chimango |
| 145 | American Kestrel | Falco sparverius |
| 146 | Aplomado Falcon | Falco femoralis |
| 147 | Peregrine Falcon | Falco peregrinus |
| Parrots: Psittacidae |
| 148 | Monk Parakeet | Myiopsitta monachus |
| Typical Antbirds: Thamnophilidae |
| 149 | Great Antshrike | Taraba major |
| 150 | Rufous-capped Antshrike | Thamnophilus ruficapillus |
| 151 | Variable Antshrike | Thamnophilus caerulescens |
| Ovenbirds and Woodcreepers: Furnariidae |
| 152 | Scimitarbilled Woodcreeper | Drymornis bridgesii |
| 153 | Narrow-billed Woodcreeper | Lepidocolaptes angustirostris |
| 154 | Chaco Earthcreeper | Tarphonomus certhioides |
| 155 | Rufous Hornero | Furnarius rufus |
| 156 | Wren-like Rushbird | Phleocryptes melanops |
| 157 | Curve-billed Reedhaunter | Limnornis curvirostris |
| 158 | Buff-winged Cinclodes | Cinclodes fuscus |
| 159 | Tufted Tit-Spinetail | Leptasthenura platensis |
| 160 | Little Thornbird | Phacellodomus sibilatrix |
| 161 | Freckle-breasted Thornbird | Phacellodomus striaticollis |
| 162 | Greater Thornbird | Phacellodomus ruber |
| 163 | Firewood-gatherer | Anumbius annumbi |
| 164 | Lark-like Brushrunner | Coryphistera alaudina |
| 165 | Short-billed Canastero | Asthenes baeri |
| 166 | Sharp-billed Canastero | Asthenes pyrrholeuca |
| 167 | Straight-billed Reedhaunter | Limnoctites rectirostris |
| 168 | Sulphur-bearded Reedhaunter | Limnoctites sulphuriferus |
| 169 | Stripe-crowned Spinetail | Cranioleuca pyrrhophia |
| 170 | Bay-capped Wren-Spinetail | Spartonoica maluroides |
| 171 | Brown Cacholote | Pseudoseisura lophotes |
| 172 | Yellow-chinned Spinetail | Certhiaxis cinnamomeus |
| 173 | Chotoy Spinetail | Schoeniophylax phryganophilus |
| 174 | Sooty-fronted Spinetail | Synallaxis frontalis |
| 175 | Pale-breasted Spinetail | Synallaxis albescens |
| 176 | Spix's Spinetail | Synallaxis spixi |
| Cotingas: Cotingidae |
| 177 | White-tipped Plantcutter | Phytotoma rutila |
| Tityras and Allies: Tityridae |
| 178 | White-naped Xenopsaris | Xenopsaris albinucha |
| 179 | White-winged Becard | Pachyramphus polychopterus |
| Tyrant Flycatchers: Tyrannidae |
| 180 | Suiriri Flycatcher | Suiriri suiriri |
| 181 | Many-colored Rush Tyrant | Tachuris rubrigastra |
| 182 | Mottle-cheeked Tyrannulet | Phylloscartes ventralis |
| 183 | Pearly-vented Tody-Tyrant | Hemitriccus margaritaceiventer |
| 184 | Southern Beardless-Tyrannulet | Camptostoma obsoletum |
| 185 | Bearded Tachuri | Polystictus pectoralis |
| 186 | Crested Doradito | Pseudocolopteryx sclateri |
| 187 | Warbling Doradito | Pseudocolopteryx flaviventris |
| 188 | Large Elaenia | Elaenia spectabilis |
| 189 | White-crested Elaenia | Elaenia albiceps |
| 190 | Small-billed Elaenia | Elaenia parvirostris |
| 191 | Sooty Tyrannulet | Serpophaga nigricans |
| 192 | White-crested Tyrannulet | Serpophaga subcristata |
| 193 | Straneck's Tyrannulet | Serpophaga griseicapilla |
| 194 | Fulvous-crowned Scrub-Tyrant | Euscarthmus meloryphus |
| 195 | Bran-colored Flycatcher | Myiophobus fasciatus |
| 196 | Euler's Flycatcher | Lathrotriccus euleri |
| 197 | Southern Scrub-Flycatcher | Sublegatus modestus |
| 198 | Vermilion Flycatcher | Pyrocephalus rubinus |
| 199 | Austral Negrito | Lessonia rufa |
| 200 | Blue-billed Black-Tyrant | Knipolegus cyanirostris |
| 201 | Spectacled Tyrant | Hymenops perspicillatus |
| 202 | Yellow-browed Tyrant | Satrapa icterophrys |
| 203 | Dark-faced Ground-Tyrant | Muscisaxicola maclovianus |
| 204 | White Monjita | Xolmis irupero |
| 205 | Gray Monjita | Nengetus cinereus |
| 206 | Black-crowned Monjita | Neoxolmis coronatus |
| 207 | Chocolate-vented Tyrant | Neoxolmis rufiventris |
| 208 | Gray-bellied Shrike-Tyrant | Agriornis micropterus |
| 209 | White-headed Marsh Tyrant | Arundinicola leucocephala |
| 210 | Black-backed Water-Tyrant | Fluvicola albiventer |
| 211 | Black-and-white Monjita | Heteroxolmis dominicanus |
| 212 | Swainson's Flycatcher | Myiarchus swainsoni |
| 213 | Short-crested Flycatcher | Myiarchus ferox |
| 214 | Brown-crested Flycatcher | Myiarchus tyrannulus |
| 215 | Cattle Tyrant | Machetornis rixosa |
| 216 | Great Kiskadee | Pitangus sulphuratus |
| 217 | Streaked Flycatcher | Myiodynastes maculatus |
| 218 | Variegated Flycatcher | Empidonomus varius |
| 219 | Crowned Slaty Flycatcher | Empidonomus aurantioatrocristatus |
| 220 | Tropical Kingbird | Tyrannus melancholicus |
| 221 | Fork-tailed Flycatcher | Tyrannus savana |
| Vireos, Shrike-Babblers, and Erpornis: Vireonidae |
| 222 | Rufous-browed Peppershrike | Cyclarhis gujanensis |
| 223 | Chivi Vireo | Vireo chiri |
| Swallows: Hirundinidae |
| 224 | Bank Swallow | Riparia riparia |
| 225 | White-rumped Swallow | Tachycineta leucorrhoa |
| 226 | Chilean Swallow | Tachycineta leucopyga |
| 227 | Gray-breasted Martin | Progne chalybea |
| 228 | Southern Martin | Progne elegans |
| 229 | Brown-chested Martin | Progne tapera |
| 230 | Southern Rough-winged Swallow | Stelgidopteryx ruficollis |
| 231 | Blue-and-white Swallow | Pygochelidon cyanoleuca |
| 232 | Tawny-headed Swallow | Alopochelidon fucata |
| 233 | Barn Swallow | Hirundo rustica |
| 234 | Cliff Swallow | Petrochelidon pyrrhonota |
| Gnatcatchers: Polioptilidae |
| 235 | Masked Gnatcatcher | Polioptila dumicola |
| Wrens: Troglodytidae |
| 236 | Southern House Wren | Troglodytes musculus |
| 237 | Grass Wren | Cistothorus platensis |
| Starlings: Sturnidae |
| 238 | European Starling | Sturnus vulgaris |
| Mockingbirds and Thrashers: Mimidae |
| 239 | Chalk-browed Mockingbird | Mimus saturninus |
| 240 | White-banded Mockingbird | Mimus triurus |
| Thrushes and Allies: Turdidae |
| 241 | Creamy-bellied Thrush | Turdus amaurochalinus |
| 242 | Rufous-bellied Thrush | Turdus rufiventris |
| Old World Sparrows: Passeridae |
| 243 | House Sparrow | Passer domesticus |
| Wagtails and Pipits: Motacillidae |
| 244 | Yellowish Pipit | Anthus chii |
| 245 | Short-billed Pipit | Anthus furcatus |
| 246 | Correndera Pipit | Anthus correndera |
| 247 | Hellmayr's Pipit | Anthus hellmayri |
| Finches, Euphonias, and Allies: Fringillidae |
| 248 | Hooded Siskin | Spinus magellanicus |
| New World Sparrows: Passerellidae |
| 249 | Grassland Sparrow | Ammodramus humeralis |
| 250 | Rufous-collared Sparrow | Zonotrichia capensis |
| Troupials and Allies: Icteridae |
| 251 | White-browed Meadowlark | Leistes superciliaris |
| 252 | Solitary Black Cacique | Cacicus solitarius |
| 253 | Golden-winged Cacique | Cacicus chrysopterus |
| 254 | Variable Oriole | Icterus pyrrhopterus |
| 255 | Screaming Cowbird | Molothrus rufoaxillaris |
| 256 | Shiny Cowbird | Molothrus bonariensis |
| 257 | Scarlet-headed Blackbird | Amblyramphus holosericeus |
| 258 | Chopi Blackbird | Gnorimopsar chopi |
| 259 | Grayish Baywing | Agelaioides badius |
| 260 | Unicolored Blackbird | Agelasticus cyanopus |
| 261 | Yellow-winged Blackbird | Agelasticus thilius |
| 262 | Chestnut-capped Blackbird | Chrysomus ruficapillus |
| 263 | Brown-and-yellow Marshbird | Pseudoleistes virescens |
| New World Warblers: Parulidae |
| 264 | Southern Yellowthroat | Geothlypis velata |
| 265 | Tropical Parula | Setophaga pitiayumi |
| 266 | Golden-crowned Warbler | Basileuterus culicivorus |
| Cardinals and Allies: Cardinalidae |
| 267 | Hepatic Tanager | Piranga flava |
| 268 | Glaucous-blue Grosbeak | Cyanoloxia glaucocaerulea |
| 269 | Ultramarine Grosbeak | Cyanoloxia brissonii |
| Tanagers and Allies: Thraupidae |
| 270 | Red-crested Cardinal | Paroaria coronata |
| 271 | Yellow-billed Cardinal | Paroaria capitata |
| 272 | Diademed Tanager | Stephanophorus diadematus |
| 273 | Fawn-breasted Tanager | Pipraeidea melanonota |
| 274 | Blue-and-yellow Tanager | Rauenia bonariensis |
| 275 | Sayaca Tanager | Thraupis sayaca |
| 276 | Long-tailed Reed Finch | Donacospiza albifrons |
| 277 | Black-and-rufous Warbling Finch | Poospiza nigrorufa |
| 278 | Gray-throated Warbling Finch | Poospiza cabanisi |
| 279 | Black-capped Warbling Finch | Poospiza melanoleuca |
| 280 | Saffron Finch | Sicalis flaveola |
| 281 | Grassland Yellow-Finch | Sicalis luteola |
| 282 | Great Pampa-Finch | Embernagra platensis |
| 283 | Blue-black Grassquit | Volatinia jacarina |
| 284 | Tawny-bellied Seedeater | Sporophila hypoxantha |
| 285 | Dark-throated Seedeater | Sporophila ruficollis |
| 286 | Marsh Seedeater | Sporophila palustris |
| 287 | Rufous-rumped Seedeater | Sporophila hypochroma |
| 288 | Chestnut Seedeater | Sporophila cinnamomea |
| 289 | Double-collared Seedeater | Sporophila caerulescens |
| 290 | Rusty-collared Seedeater | Sporophila collaris |
| 291 | Red-crested Finch | Coryphospingus cucullatus |
| 292 | Many-colored Chaco Finch | Saltatricula multicolor |
| 293 | Bluish-gray Saltator | Saltator coerulescens |
| 294 | Green-winged Saltator | Saltator similis |
| 295 | Golden-billed Saltator | Saltator aurantiirostris |
Special Birds