| Tinamous: Tinamidae |
| 1 | Spotted Nothura | Nothura maculosa |
| Screamers: Anhimidae |
| 2 | Southern Screamer | Chauna torquata |
| Ducks: Anatidae |
| 3 | White-faced Whistling-Duck | Dendrocygna viduata |
| 4 | Black-necked Swan | Cygnus melancoryphus |
| 5 | Coscoroba Swan | Coscoroba coscoroba |
| 6 | Brazilian Teal | Amazonetta brasiliensis |
| 7 | Red Shoveler | Spatula platalea |
| 8 | White-cheeked Pintail | Anas bahamensis |
| 9 | Yellow-billed Pintail | Anas georgica |
| 10 | Yellow-billed Teal | Anas flavirostris |
| 11 | Lake Duck | Oxyura vittata |
| Pigeons and Doves: Columbidae |
| 12 | Rock Pigeon | Columba livia |
| 13 | Picazuro Pigeon | Patagioenas picazuro |
| 14 | Spot-winged Pigeon | Patagioenas maculosa |
| 15 | Picui Ground Dove | Columbina picui |
| 16 | Eared Dove | Zenaida auriculata |
| Cuckoos: Cuculidae |
| 17 | Guira Cuckoo | Guira guira |
| 18 | Striped Cuckoo | Tapera naevia |
| 19 | Dark-billed Cuckoo | Coccyzus melacoryphus |
| Hummingbirds: Trochilidae |
| 20 | Blue-tufted Starthroat | Heliomaster furcifer |
| 21 | Glittering-bellied Emerald | Chlorostilbon lucidus |
| 22 | Gilded Hummingbird | Hylocharis chrysura |
| Rails, Gallinules, and Coots: Rallidae |
| 23 | Plumbeous Rail | Pardirallus sanguinolentus |
| 24 | Spot-flanked Gallinule | Porphyriops melanops |
| 25 | Red-fronted Coot | Fulica rufifrons |
| 26 | Red-gartered Coot | Fulica armillata |
| 27 | White-winged Coot | Fulica leucoptera |
| 28 | Dot-winged Crake | Laterallus spiloptera |
| Stilts and Avocets: Recurvirostridae |
| 29 | Black-necked Stilt | Himantopus mexicanus |
| Plovers and Lapwings: Charadriidae |
| 30 | Southern Lapwing | Vanellus chilensis |
| 31 | Collared Plover | Anarhynchus collaris |
| 32 | Two-banded Plover | Anarhynchus falklandicus |
| Sandpipers and Allies: Scolopacidae |
| 33 | Wilson's Phalarope | Phalaropus tricolor |
| 34 | Spotted Sandpiper | Actitis macularius |
| 35 | Solitary Sandpiper | Tringa solitaria |
| 36 | Lesser Yellowlegs | Tringa flavipes |
| 37 | Greater Yellowlegs | Tringa melanoleuca |
| 38 | Baird's Sandpiper | Calidris bairdii |
| 39 | White-rumped Sandpiper | Calidris fuscicollis |
| 40 | Pectoral Sandpiper | Calidris melanotos |
| Gulls, Terns, and Skimmers: Laridae |
| 41 | Brown-hooded Gull | Chroicocephalus maculipennis |
| 42 | Gray-hooded Gull | Chroicocephalus cirrocephalus |
| 43 | Kelp Gull | Larus dominicanus |
| 44 | Black Skimmer | Rynchops niger |
| 45 | Large-billed Tern | Phaetusa simplex |
| 46 | Gull-billed Tern | Gelochelidon nilotica |
| 47 | White-winged Tern | Chlidonias leucopterus |
| 48 | Snowy-crowned Tern | Sterna trudeaui |
| Flamingos: Phoenicopteridae |
| 49 | Chilean Flamingo | Phoenicopterus chilensis |
| 50 | James's Flamingo | Phoenicoparrus jamesi |
| Grebes: Podicipedidae |
| 51 | White-tufted Grebe | Rollandia rolland |
| 52 | Pied-billed Grebe | Podilymbus podiceps |
| 53 | Great Grebe | Podiceps major |
| 54 | Silvery Grebe | Podiceps occipitalis |
| Storks: Ciconiidae |
| 55 | Maguari Stork | Ciconia maguari |
| Cormorants and Shags: Phalacrocoracidae |
| 56 | Neotropic Cormorant | Nannopterum brasilianus |
| Ibises and Spoonbills: Threskiornithidae |
| 57 | White-faced Ibis | Plegadis chihi |
| 58 | Bare-faced Ibis | Phimosus infuscatus |
| 59 | Roseate Spoonbill | Platalea ajaja |
| Herons, Egrets, and Bitterns: Ardeidae |
| 60 | Snowy Egret | Egretta thula |
| 61 | Striated Heron | Butorides striata |
| 62 | Western Cattle-Egret | Bubulcus ibis |
| 63 | Great Egret | Ardea alba |
| 64 | Cocoi Heron | Ardea cocoi |
| New World Vultures: Cathartidae |
| 65 | Black Vulture | Coragyps atratus |
| 66 | Turkey Vulture | Cathartes aura |
| 67 | Lesser Yellow-headed Vulture | Cathartes burrovianus |
| Hawks, Eagles, and Kites: Accipitridae |
| 68 | Long-winged Harrier | Circus buffoni |
| 69 | Roadside Hawk | Rupornis magnirostris |
| Owls: Strigidae |
| 70 | Ferruginous Pygmy-Owl | Glaucidium brasilianum |
| 71 | Burrowing Owl | Athene cunicularia |
| 72 | Striped Owl | Asio clamator |
| Kingfishers: Alcedinidae |
| 73 | Ringed Kingfisher | Megaceryle torquata |
| 74 | Amazon Kingfisher | Chloroceryle amazona |
| Woodpeckers: Picidae |
| 75 | White-barred Piculet | Picumnus cirratus |
| 76 | White-fronted Woodpecker | Melanerpes cactorum |
| 77 | Green-barred Woodpecker | Colaptes melanochloros |
| 78 | Campo Flicker | Colaptes campestris |
| Falcons and Caracaras: Falconidae |
| 79 | Crested Caracara | Caracara cheriway |
| 80 | Chimango Caracara | Daptrius chimango |
| 81 | American Kestrel | Falco sparverius |
| 82 | Aplomado Falcon | Falco femoralis |
| 83 | Peregrine Falcon | Falco peregrinus |
| Parrots: Psittacidae |
| 84 | Monk Parakeet | Myiopsitta monachus |
| Typical Antbirds: Thamnophilidae |
| 85 | Great Antshrike | Taraba major |
| 86 | Variable Antshrike | Thamnophilus caerulescens |
| Crescentchests: Melanopareiidae |
| 87 | Olive-crowned Crescentchest | Melanopareia maximiliani |
| Ovenbirds and Woodcreepers: Furnariidae |
| 88 | Scimitarbilled Woodcreeper | Drymornis bridgesii |
| 89 | Chaco Earthcreeper | Tarphonomus certhioides |
| 90 | Rufous Hornero | Furnarius rufus |
| 91 | Wren-like Rushbird | Phleocryptes melanops |
| 92 | Buff-winged Cinclodes | Cinclodes fuscus |
| 93 | Tufted Tit-Spinetail | Leptasthenura platensis |
| 94 | Little Thornbird | Phacellodomus sibilatrix |
| 95 | Lark-like Brushrunner | Coryphistera alaudina |
| 96 | Short-billed Canastero | Asthenes baeri |
| 97 | Sharp-billed Canastero | Asthenes pyrrholeuca |
| 98 | Stripe-crowned Spinetail | Cranioleuca pyrrhophia |
| 99 | Brown Cacholote | Pseudoseisura lophotes |
| 100 | Chotoy Spinetail | Schoeniophylax phryganophilus |
| 101 | Sooty-fronted Spinetail | Synallaxis frontalis |
| 102 | Pale-breasted Spinetail | Synallaxis albescens |
| Cotingas: Cotingidae |
| 103 | White-tipped Plantcutter | Phytotoma rutila |
| Tyrant Flycatchers: Tyrannidae |
| 104 | Pearly-vented Tody-Tyrant | Hemitriccus margaritaceiventer |
| 105 | Southern Beardless-Tyrannulet | Camptostoma obsoletum |
| 106 | Dinelli's Doradito | Pseudocolopteryx dinelliana |
| 107 | Small-billed Elaenia | Elaenia parvirostris |
| 108 | White-crested Tyrannulet | Serpophaga subcristata |
| 109 | Straneck's Tyrannulet | Serpophaga griseicapilla |
| 110 | Fulvous-crowned Scrub-Tyrant | Euscarthmus meloryphus |
| 111 | Greater Wagtail-Tyrant | Stigmatura budytoides |
| 112 | Vermilion Flycatcher | Pyrocephalus rubinus |
| 113 | Austral Negrito | Lessonia rufa |
| 114 | Spectacled Tyrant | Hymenops perspicillatus |
| 115 | White Monjita | Xolmis irupero |
| 116 | Cattle Tyrant | Machetornis rixosa |
| 117 | Great Kiskadee | Pitangus sulphuratus |
| 118 | Tropical Kingbird | Tyrannus melancholicus |
| 119 | Fork-tailed Flycatcher | Tyrannus savana |
| Swallows: Hirundinidae |
| 120 | White-rumped Swallow | Tachycineta leucorrhoa |
| 121 | Southern Martin | Progne elegans |
| 122 | Brown-chested Martin | Progne tapera |
| 123 | Barn Swallow | Hirundo rustica |
| 124 | Cliff Swallow | Petrochelidon pyrrhonota |
| Gnatcatchers: Polioptilidae |
| 125 | Masked Gnatcatcher | Polioptila dumicola |
| Wrens: Troglodytidae |
| 126 | Southern House Wren | Troglodytes musculus |
| Mockingbirds and Thrashers: Mimidae |
| 127 | Chalk-browed Mockingbird | Mimus saturninus |
| 128 | White-banded Mockingbird | Mimus triurus |
| Thrushes and Allies: Turdidae |
| 129 | Chiguanco Thrush | Turdus chiguanco |
| 130 | Creamy-bellied Thrush | Turdus amaurochalinus |
| 131 | Rufous-bellied Thrush | Turdus rufiventris |
| Old World Sparrows: Passeridae |
| 132 | House Sparrow | Passer domesticus |
| Wagtails and Pipits: Motacillidae |
| 133 | Correndera Pipit | Anthus correndera |
| Finches, Euphonias, and Allies: Fringillidae |
| 134 | Hooded Siskin | Spinus magellanicus |
| New World Sparrows: Passerellidae |
| 135 | Rufous-collared Sparrow | Zonotrichia capensis |
| Troupials and Allies: Icteridae |
| 136 | White-browed Meadowlark | Leistes superciliaris |
| 137 | Long-tailed Meadowlark | Leistes loyca |
| 138 | Solitary Black Cacique | Cacicus solitarius |
| 139 | Screaming Cowbird | Molothrus rufoaxillaris |
| 140 | Shiny Cowbird | Molothrus bonariensis |
| 141 | Scarlet-headed Blackbird | Amblyramphus holosericeus |
| 142 | Grayish Baywing | Agelaioides badius |
| 143 | Yellow-winged Blackbird | Agelasticus thilius |
| 144 | Chestnut-capped Blackbird | Chrysomus ruficapillus |
| New World Warblers: Parulidae |
| 145 | Southern Yellowthroat | Geothlypis velata |
| Cardinals and Allies: Cardinalidae |
| 146 | Ultramarine Grosbeak | Cyanoloxia brissonii |
| Tanagers and Allies: Thraupidae |
| 147 | Red-crested Cardinal | Paroaria coronata |
| 148 | Blue-and-yellow Tanager | Rauenia bonariensis |
| 149 | Black-and-chestnut Warbling Finch | Poospiza whitii |
| 150 | Ringed Warbling Finch | Poospiza torquata |
| 151 | Black-capped Warbling Finch | Poospiza melanoleuca |
| 152 | Saffron Finch | Sicalis flaveola |
| 153 | Grassland Yellow-Finch | Sicalis luteola |
| 154 | Great Pampa-Finch | Embernagra platensis |
| 155 | Blue-black Grassquit | Volatinia jacarina |
| 156 | Tawny-bellied Seedeater | Sporophila hypoxantha |
| 157 | Dark-throated Seedeater | Sporophila ruficollis |
| 158 | Double-collared Seedeater | Sporophila caerulescens |
| 159 | Many-colored Chaco Finch | Saltatricula multicolor |
| 160 | Golden-billed Saltator | Saltator aurantiirostris |
Special Birds