| Rheas: Rheidae |
| 1 | Greater Rhea | Rhea americana |
| Tinamous: Tinamidae |
| 2 | Spotted Nothura | Nothura maculosa |
| Screamers: Anhimidae |
| 3 | Southern Screamer | Chauna torquata |
| Ducks: Anatidae |
| 4 | White-faced Whistling-Duck | Dendrocygna viduata |
| 5 | Black-bellied Whistling-Duck | Dendrocygna autumnalis |
| 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 | Yellow-billed Pintail | Anas georgica |
| 15 | Yellow-billed Teal | Anas flavirostris |
| 16 | Rosy-billed Pochard | Netta peposaca |
| Pigeons and Doves: Columbidae |
| 17 | Rock Pigeon | Columba livia |
| 18 | Picazuro Pigeon | Patagioenas picazuro |
| 19 | Spot-winged Pigeon | Patagioenas maculosa |
| 20 | Ruddy Ground Dove | Columbina talpacoti |
| 21 | Picui Ground Dove | Columbina picui |
| 22 | White-tipped Dove | Leptotila verreauxi |
| 23 | Eared Dove | Zenaida auriculata |
| Cuckoos: Cuculidae |
| 24 | Guira Cuckoo | Guira guira |
| 25 | Striped Cuckoo | Tapera naevia |
| 26 | Ash-colored Cuckoo | Coccycua cinerea |
| 27 | Dark-billed Cuckoo | Coccyzus melacoryphus |
| Nightjars and Allies: Caprimulgidae |
| 28 | Nacunda Nighthawk | Chordeiles nacunda |
| 29 | Little Nightjar | Setopagis parvula |
| 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 | White-winged Coot | Fulica leucoptera |
| 41 | Rufous-sided Crake | Laterallus melanophaius |
| Limpkin: Aramidae |
| 42 | Limpkin | Aramus guarauna |
| Stilts and Avocets: Recurvirostridae |
| 43 | Black-necked Stilt | Himantopus mexicanus |
| Plovers and Lapwings: Charadriidae |
| 44 | American Golden-Plover | Pluvialis dominica |
| 45 | Southern Lapwing | Vanellus chilensis |
| Jacanas: Jacanidae |
| 46 | Wattled Jacana | Jacana jacana |
| Sandpipers and Allies: Scolopacidae |
| 47 | Pantanal Snipe | Gallinago paraguaiae |
| 48 | Solitary Sandpiper | Tringa solitaria |
| 49 | Lesser Yellowlegs | Tringa flavipes |
| 50 | Greater Yellowlegs | Tringa melanoleuca |
| 51 | Stilt Sandpiper | Calidris himantopus |
| 52 | Baird's Sandpiper | Calidris bairdii |
| 53 | Pectoral Sandpiper | Calidris melanotos |
| Gulls, Terns, and Skimmers: Laridae |
| 54 | Brown-hooded Gull | Chroicocephalus maculipennis |
| 55 | Kelp Gull | Larus dominicanus |
| 56 | Black Skimmer | Rynchops niger |
| 57 | Yellow-billed Tern | Sternula superciliaris |
| 58 | Large-billed Tern | Phaetusa simplex |
| Grebes: Podicipedidae |
| 59 | White-tufted Grebe | Rollandia rolland |
| 60 | Pied-billed Grebe | Podilymbus podiceps |
| 61 | Great Grebe | Podiceps major |
| Storks: Ciconiidae |
| 62 | Maguari Stork | Ciconia maguari |
| 63 | Wood Stork | Mycteria americana |
| Anhingas: Anhingidae |
| 64 | Anhinga | Anhinga anhinga |
| Cormorants and Shags: Phalacrocoracidae |
| 65 | Neotropic Cormorant | Nannopterum brasilianus |
| Ibises and Spoonbills: Threskiornithidae |
| 66 | White-faced Ibis | Plegadis chihi |
| 67 | Bare-faced Ibis | Phimosus infuscatus |
| 68 | Plumbeous Ibis | Theristicus caerulescens |
| 69 | Roseate Spoonbill | Platalea ajaja |
| Herons, Egrets, and Bitterns: Ardeidae |
| 70 | Rufescent Tiger-Heron | Tigrisoma lineatum |
| 71 | Black-crowned Night Heron | Nycticorax nycticorax |
| 72 | Whistling Heron | Syrigma sibilatrix |
| 73 | Snowy Egret | Egretta thula |
| 74 | Striated Heron | Butorides striata |
| 75 | Western Cattle-Egret | Bubulcus ibis |
| 76 | Great Egret | Ardea alba |
| 77 | Cocoi Heron | Ardea cocoi |
| New World Vultures: Cathartidae |
| 78 | Black Vulture | Coragyps atratus |
| Hawks, Eagles, and Kites: Accipitridae |
| 79 | White-tailed Kite | Elanus leucurus |
| 80 | Long-winged Harrier | Circus buffoni |
| 81 | Mississippi Kite | Ictinia mississippiensis |
| 82 | Snail Kite | Rostrhamus sociabilis |
| 83 | Savanna Hawk | Buteogallus meridionalis |
| 84 | Roadside Hawk | Rupornis magnirostris |
| Barn-Owls: Tytonidae |
| 85 | American Barn Owl | Tyto furcata |
| Owls: Strigidae |
| 86 | Tropical Screech-Owl | Megascops choliba |
| 87 | Great Horned Owl | Bubo virginianus |
| 88 | Burrowing Owl | Athene cunicularia |
| Kingfishers: Alcedinidae |
| 89 | Ringed Kingfisher | Megaceryle torquata |
| 90 | Amazon Kingfisher | Chloroceryle amazona |
| 91 | Green Kingfisher | Chloroceryle americana |
| Woodpeckers: Picidae |
| 92 | White-barred Piculet | Picumnus cirratus |
| 93 | White Woodpecker | Melanerpes candidus |
| 94 | White-fronted Woodpecker | Melanerpes cactorum |
| 95 | Checkered Woodpecker | Veniliornis mixtus |
| 96 | Green-barred Woodpecker | Colaptes melanochloros |
| 97 | Campo Flicker | Colaptes campestris |
| Falcons and Caracaras: Falconidae |
| 98 | Crested Caracara | Caracara cheriway |
| 99 | Chimango Caracara | Daptrius chimango |
| 100 | American Kestrel | Falco sparverius |
| 101 | Aplomado Falcon | Falco femoralis |
| Parrots: Psittacidae |
| 102 | Monk Parakeet | Myiopsitta monachus |
| Typical Antbirds: Thamnophilidae |
| 103 | Great Antshrike | Taraba major |
| 104 | Rufous-capped Antshrike | Thamnophilus ruficapillus |
| 105 | Variable Antshrike | Thamnophilus caerulescens |
| Ovenbirds and Woodcreepers: Furnariidae |
| 106 | Scimitarbilled Woodcreeper | Drymornis bridgesii |
| 107 | Narrow-billed Woodcreeper | Lepidocolaptes angustirostris |
| 108 | Rufous Hornero | Furnarius rufus |
| 109 | Wren-like Rushbird | Phleocryptes melanops |
| 110 | Curve-billed Reedhaunter | Limnornis curvirostris |
| 111 | Buff-winged Cinclodes | Cinclodes fuscus |
| 112 | Tufted Tit-Spinetail | Leptasthenura platensis |
| 113 | Little Thornbird | Phacellodomus sibilatrix |
| 114 | Freckle-breasted Thornbird | Phacellodomus striaticollis |
| 115 | Greater Thornbird | Phacellodomus ruber |
| 116 | Firewood-gatherer | Anumbius annumbi |
| 117 | Lark-like Brushrunner | Coryphistera alaudina |
| 118 | Short-billed Canastero | Asthenes baeri |
| 119 | Straight-billed Reedhaunter | Limnoctites rectirostris |
| 120 | Sulphur-bearded Reedhaunter | Limnoctites sulphuriferus |
| 121 | Yellow-chinned Spinetail | Certhiaxis cinnamomeus |
| 122 | Chotoy Spinetail | Schoeniophylax phryganophilus |
| 123 | Sooty-fronted Spinetail | Synallaxis frontalis |
| 124 | Pale-breasted Spinetail | Synallaxis albescens |
| 125 | Spix's Spinetail | Synallaxis spixi |
| Cotingas: Cotingidae |
| 126 | White-tipped Plantcutter | Phytotoma rutila |
| Tityras and Allies: Tityridae |
| 127 | White-naped Xenopsaris | Xenopsaris albinucha |
| 128 | White-winged Becard | Pachyramphus polychopterus |
| Tyrant Flycatchers: Tyrannidae |
| 129 | Suiriri Flycatcher | Suiriri suiriri |
| 130 | Many-colored Rush Tyrant | Tachuris rubrigastra |
| 131 | Southern Beardless-Tyrannulet | Camptostoma obsoletum |
| 132 | Warbling Doradito | Pseudocolopteryx flaviventris |
| 133 | Small-billed Elaenia | Elaenia parvirostris |
| 134 | Sooty Tyrannulet | Serpophaga nigricans |
| 135 | White-crested Tyrannulet | Serpophaga subcristata |
| 136 | Fulvous-crowned Scrub-Tyrant | Euscarthmus meloryphus |
| 137 | Bran-colored Flycatcher | Myiophobus fasciatus |
| 138 | Southern Scrub-Flycatcher | Sublegatus modestus |
| 139 | Vermilion Flycatcher | Pyrocephalus rubinus |
| 140 | Austral Negrito | Lessonia rufa |
| 141 | Spectacled Tyrant | Hymenops perspicillatus |
| 142 | Yellow-browed Tyrant | Satrapa icterophrys |
| 143 | White Monjita | Xolmis irupero |
| 144 | White-headed Marsh Tyrant | Arundinicola leucocephala |
| 145 | Black-backed Water-Tyrant | Fluvicola albiventer |
| 146 | Swainson's Flycatcher | Myiarchus swainsoni |
| 147 | Brown-crested Flycatcher | Myiarchus tyrannulus |
| 148 | Cattle Tyrant | Machetornis rixosa |
| 149 | Great Kiskadee | Pitangus sulphuratus |
| 150 | Streaked Flycatcher | Myiodynastes maculatus |
| 151 | Crowned Slaty Flycatcher | Empidonomus aurantioatrocristatus |
| 152 | Tropical Kingbird | Tyrannus melancholicus |
| 153 | Fork-tailed Flycatcher | Tyrannus savana |
| Vireos, Shrike-Babblers, and Erpornis: Vireonidae |
| 154 | Rufous-browed Peppershrike | Cyclarhis gujanensis |
| 155 | Chivi Vireo | Vireo chiri |
| Swallows: Hirundinidae |
| 156 | White-rumped Swallow | Tachycineta leucorrhoa |
| 157 | Chilean Swallow | Tachycineta leucopyga |
| 158 | Gray-breasted Martin | Progne chalybea |
| 159 | Brown-chested Martin | Progne tapera |
| 160 | Southern Rough-winged Swallow | Stelgidopteryx ruficollis |
| 161 | Blue-and-white Swallow | Pygochelidon cyanoleuca |
| 162 | Barn Swallow | Hirundo rustica |
| 163 | Cliff Swallow | Petrochelidon pyrrhonota |
| Gnatcatchers: Polioptilidae |
| 164 | Masked Gnatcatcher | Polioptila dumicola |
| Wrens: Troglodytidae |
| 165 | Southern House Wren | Troglodytes musculus |
| 166 | Grass Wren | Cistothorus platensis |
| Starlings: Sturnidae |
| 167 | European Starling | Sturnus vulgaris |
| Mockingbirds and Thrashers: Mimidae |
| 168 | Chalk-browed Mockingbird | Mimus saturninus |
| 169 | White-banded Mockingbird | Mimus triurus |
| Thrushes and Allies: Turdidae |
| 170 | Creamy-bellied Thrush | Turdus amaurochalinus |
| 171 | Rufous-bellied Thrush | Turdus rufiventris |
| Old World Sparrows: Passeridae |
| 172 | House Sparrow | Passer domesticus |
| Wagtails and Pipits: Motacillidae |
| 173 | Yellowish Pipit | Anthus chii |
| 174 | Correndera Pipit | Anthus correndera |
| Finches, Euphonias, and Allies: Fringillidae |
| 175 | Hooded Siskin | Spinus magellanicus |
| New World Sparrows: Passerellidae |
| 176 | Grassland Sparrow | Ammodramus humeralis |
| 177 | Rufous-collared Sparrow | Zonotrichia capensis |
| Troupials and Allies: Icteridae |
| 178 | White-browed Meadowlark | Leistes superciliaris |
| 179 | Solitary Black Cacique | Cacicus solitarius |
| 180 | Variable Oriole | Icterus pyrrhopterus |
| 181 | Screaming Cowbird | Molothrus rufoaxillaris |
| 182 | Shiny Cowbird | Molothrus bonariensis |
| 183 | Scarlet-headed Blackbird | Amblyramphus holosericeus |
| 184 | Grayish Baywing | Agelaioides badius |
| 185 | Unicolored Blackbird | Agelasticus cyanopus |
| 186 | Yellow-winged Blackbird | Agelasticus thilius |
| 187 | Chestnut-capped Blackbird | Chrysomus ruficapillus |
| 188 | Brown-and-yellow Marshbird | Pseudoleistes virescens |
| New World Warblers: Parulidae |
| 189 | Southern Yellowthroat | Geothlypis velata |
| 190 | Tropical Parula | Setophaga pitiayumi |
| 191 | Golden-crowned Warbler | Basileuterus culicivorus |
| Cardinals and Allies: Cardinalidae |
| 192 | Ultramarine Grosbeak | Cyanoloxia brissonii |
| Tanagers and Allies: Thraupidae |
| 193 | Red-crested Cardinal | Paroaria coronata |
| 194 | Yellow-billed Cardinal | Paroaria capitata |
| 195 | Diademed Tanager | Stephanophorus diadematus |
| 196 | Blue-and-yellow Tanager | Rauenia bonariensis |
| 197 | Sayaca Tanager | Thraupis sayaca |
| 198 | Long-tailed Reed Finch | Donacospiza albifrons |
| 199 | Black-and-rufous Warbling Finch | Poospiza nigrorufa |
| 200 | Gray-throated Warbling Finch | Poospiza cabanisi |
| 201 | Black-capped Warbling Finch | Poospiza melanoleuca |
| 202 | Saffron Finch | Sicalis flaveola |
| 203 | Grassland Yellow-Finch | Sicalis luteola |
| 204 | Great Pampa-Finch | Embernagra platensis |
| 205 | Blue-black Grassquit | Volatinia jacarina |
| 206 | Tawny-bellied Seedeater | Sporophila hypoxantha |
| 207 | Dark-throated Seedeater | Sporophila ruficollis |
| 208 | Double-collared Seedeater | Sporophila caerulescens |
| 209 | Rusty-collared Seedeater | Sporophila collaris |
| 210 | Bluish-gray Saltator | Saltator coerulescens |
| 211 | Green-winged Saltator | Saltator similis |
| 212 | Golden-billed Saltator | Saltator aurantiirostris |
Special Birds