| Rheas: Rheidae |
| 1 | Greater Rhea | Rhea americana | C |
| Tinamous: Tinamidae |
| 2 | Spotted Nothura | Nothura maculosa | FC |
| 3 | Red-winged Tinamou | Rhynchotus rufescens | ? |
| Screamers: Anhimidae |
| 4 | Southern Screamer | Chauna torquata | UC |
| Ducks: Anatidae |
| 5 | White-faced Whistling-Duck | Dendrocygna viduata | UC |
| 6 | \Black-necked Swan\ | Cygnus melancoryphus | UC |
| 7 | \Coscoroba Swan\ | Coscoroba coscoroba | FC |
| 8 | \Ringed Teal\ | Callonetta leucophrys | UC |
| 9 | Brazilian Teal | Amazonetta brasiliensis | FC |
| 10 | Silver Teal | Spatula versicolor | FC |
| 11 | \Red Shoveler\ | Spatula platalea | UC |
| 12 | White-cheeked Pintail | Anas bahamensis | VR |
| 13 | Yellow-billed Pintail | Anas georgica | C |
| 14 | Yellow-billed Teal | Anas flavirostris | FC |
| 15 | Rosy-billed Pochard | Netta peposaca | UC |
| 16 | \Black-headed Duck\ | Heteronetta atricapilla | ? |
| 17 | Masked Duck | Nomonyx dominicus | R |
| Pigeons and Doves: Columbidae |
| 18 | Rock Pigeon | Columba livia | ? |
| 19 | Pale-vented Pigeon | Patagioenas cayennensis | UC |
| 20 | Picazuro Pigeon | Patagioenas picazuro | UC |
| 21 | Picui Ground Dove | Columbina picui | FC |
| 22 | Eared Dove | Zenaida auriculata | FC |
| Cuckoos: Cuculidae |
| 23 | Guira Cuckoo | Guira guira | FC |
| 24 | Smooth-billed Ani | Crotophaga ani | UC |
| 25 | Common Squirrel-Cuckoo | Piaya cayana | UC |
| 26 | Dark-billed Cuckoo | Coccyzus melacoryphus | R |
| Nightjars and Allies: Caprimulgidae |
| 27 | Nacunda Nighthawk | Chordeiles nacunda | FC |
| Hummingbirds: Trochilidae |
| 28 | Glittering-bellied Emerald | Chlorostilbon lucidus | ? |
| 29 | Gilded Hummingbird | Hylocharis chrysura | FC |
| Rails, Gallinules, and Coots: Rallidae |
| 30 | Ash-throated Crake | Mustelirallus albicollis | ? |
| 31 | Plumbeous Rail | Pardirallus sanguinolentus | UC |
| 32 | Giant Wood-Rail | Aramides ypecaha | UC |
| 33 | Spot-flanked Gallinule | Porphyriops melanops | UC |
| 34 | Common Gallinule | Gallinula galeata | FC |
| 35 | Red-fronted Coot | Fulica rufifrons | ? |
| 36 | Red-gartered Coot | Fulica armillata | UC |
| 37 | White-winged Coot | Fulica leucoptera | FC |
| 38 | Red-and-white Crake | Rufirallus leucopyrrhus | ? |
| Limpkin: Aramidae |
| 39 | Limpkin | Aramus guarauna | FC |
| Sheathbills: Chionidae |
| 40 | Snowy Sheathbill | Chionis albus | VR |
| Stilts and Avocets: Recurvirostridae |
| 41 | Black-necked Stilt | Himantopus mexicanus | FC |
| Oystercatchers: Haematopodidae |
| 42 | American Oystercatcher | Haematopus palliatus | C |
| Plovers and Lapwings: Charadriidae |
| 43 | /Black-bellied Plover/ | Pluvialis squatarola | ? |
| 44 | /American Golden-Plover/ | Pluvialis dominica | ? |
| 45 | \Rufous-chested Dotterel\ | Zonibyx modestus | R |
| 46 | Semipalmated Plover | Charadrius semipalmatus | VR |
| 47 | Southern Lapwing | Vanellus chilensis | C |
| 48 | Collared Plover | Anarhynchus collaris | FC |
| 49 | Two-banded Plover | Anarhynchus falklandicus | UC |
| Painted-Snipes: Rostratulidae |
| 50 | South American Painted-Snipe | Nycticryphes semicollaris | R |
| Jacanas: Jacanidae |
| 51 | Wattled Jacana | Jacana jacana | FC |
| Sandpipers and Allies: Scolopacidae |
| 52 | /Hudsonian Whimbrel/ | Numenius phaeopus | ? |
| 53 | /Hudsonian Godwit/ | Limosa haemastica | ? |
| 54 | /Short-billed Dowitcher/ | Limnodromus griseus | ? |
| 55 | Pantanal Snipe | Gallinago paraguaiae | UC |
| 56 | /Wilson's Phalarope/ | Phalaropus tricolor | ? |
| 57 | /Solitary Sandpiper/ | Tringa solitaria | ? |
| 58 | /Lesser Yellowlegs/ | Tringa flavipes | FC |
| 59 | /Willet/ | Tringa semipalmata | ? |
| 60 | /Greater Yellowlegs/ | Tringa melanoleuca | FC |
| 61 | /Ruddy Turnstone/ | Arenaria interpres | ? |
| 62 | /Red Knot/ | Calidris canutus | FC |
| 63 | Stilt Sandpiper | Calidris himantopus | ? |
| 64 | /Buff-breasted Sandpiper/ | Calidris subruficollis | ? |
| 65 | /Sanderling/ | Calidris alba | A |
| 66 | Baird's Sandpiper | Calidris bairdii | ? |
| 67 | /White-rumped Sandpiper/ | Calidris fuscicollis | UC |
| 68 | /Pectoral Sandpiper/ | Calidris melanotos | ? |
| 69 | /Semipalmated Sandpiper/ | Calidris pusilla | FC |
| Skuas and Jaegers: Stercorariidae |
| 70 | Parasitic Jaeger | Stercorarius parasiticus | VR |
| Gulls, Terns, and Skimmers: Laridae |
| 71 | Brown-hooded Gull | Chroicocephalus maculipennis | C |
| 72 | Gray-hooded Gull | Chroicocephalus cirrocephalus | |
| 73 | \Olrog's Gull\ | Larus atlanticus | ? |
| 74 | Kelp Gull | Larus dominicanus | FC |
| 75 | Black Skimmer | Rynchops niger | UC |
| 76 | /Least Tern/ | Sternula antillarum | ? |
| 77 | Yellow-billed Tern | Sternula superciliaris | FC |
| 78 | Large-billed Tern | Phaetusa simplex | UC |
| 79 | Gull-billed Tern | Gelochelidon nilotica | R |
| 80 | Snowy-crowned Tern | Sterna trudeaui | C |
| 81 | (South American Tern) | Sterna hirundinacea | C |
| 82 | /Common Tern/ | Sterna hirundo | UC |
| 83 | Sandwich Tern | Thalasseus sandvicensis | UC |
| 84 | Royal Tern | Thalasseus maximus | R |
| Flamingos: Phoenicopteridae |
| 85 | Chilean Flamingo | Phoenicopterus chilensis | FC |
| 86 | Andean Flamingo | Phoenicoparrus andinus | R |
| Grebes: Podicipedidae |
| 87 | \White-tufted Grebe\ | Rollandia rolland | ? |
| 88 | Least Grebe | Tachybaptus dominicus | ? |
| 89 | Pied-billed Grebe | Podilymbus podiceps | UC |
| 90 | Great Grebe | Podiceps major | ? |
| Penguins: Spheniscidae |
| 91 | Magellanic Penguin | Spheniscus magellanicus | ? |
| Albatrosses: Diomedeidae |
| 92 | Atlantic Yellow-nosed Albatross | Thalassarche chlororhynchos | VR |
| 93 | \Black-browed Albatross\ | Thalassarche melanophris | ? |
| Shearwaters and Petrels: Procellariidae |
| 94 | (Manx Shearwater) | Puffinus puffinus | ? |
| Storks: Ciconiidae |
| 95 | Maguari Stork | Ciconia maguari | UC |
| 96 | Wood Stork | Mycteria americana | ? |
| Boobies and Gannets: Sulidae |
| 97 | Brown Booby | Sula leucogaster | R |
| Cormorants and Shags: Phalacrocoracidae |
| 98 | Neotropic Cormorant | Nannopterum brasilianus | FC |
| Ibises and Spoonbills: Threskiornithidae |
| 99 | White-faced Ibis | Plegadis chihi | FC |
| 100 | Bare-faced Ibis | Phimosus infuscatus | FC |
| 101 | Plumbeous Ibis | Theristicus caerulescens | R |
| 102 | Roseate Spoonbill | Platalea ajaja | UC |
| Herons, Egrets, and Bitterns: Ardeidae |
| 103 | Pinnated Bittern | Botaurus pinnatus | ? |
| 104 | Stripe-backed Bittern | Botaurus involucris | ? |
| 105 | Black-crowned Night Heron | Nycticorax nycticorax | ? |
| 106 | Whistling Heron | Syrigma sibilatrix | UC |
| 107 | Snowy Egret | Egretta thula | FC |
| 108 | Striated Heron | Butorides striata | ? |
| 109 | Western Cattle-Egret | Bubulcus ibis | C |
| 110 | Great Egret | Ardea alba | C |
| 111 | Cocoi Heron | Ardea cocoi | FC |
| New World Vultures: Cathartidae |
| 112 | Black Vulture | Coragyps atratus | C |
| 113 | Turkey Vulture | Cathartes aura | FC |
| Hawks, Eagles, and Kites: Accipitridae |
| 114 | Long-winged Harrier | Circus buffoni | FC |
| 115 | \Cinereous Harrier\ | Circus cinereus | ? |
| 116 | Snail Kite | Rostrhamus sociabilis | UC |
| 117 | Savanna Hawk | Buteogallus meridionalis | FC |
| 118 | Roadside Hawk | Rupornis magnirostris | ? |
| 119 | Short-tailed Hawk | Buteo brachyurus | UC |
| Owls: Strigidae |
| 120 | Great Horned Owl | Bubo virginianus | UC |
| 121 | Burrowing Owl | Athene cunicularia | C |
| Kingfishers: Alcedinidae |
| 122 | Ringed Kingfisher | Megaceryle torquata | FC |
| 123 | Amazon Kingfisher | Chloroceryle amazona | UC |
| Woodpeckers: Picidae |
| 124 | Green-barred Woodpecker | Colaptes melanochloros | ? |
| 125 | Campo Flicker | Colaptes campestris | FC |
| Falcons and Caracaras: Falconidae |
| 126 | Crested Caracara | Caracara cheriway | FC |
| 127 | Yellow-headed Caracara | Daptrius chimachima | ? |
| 128 | Chimango Caracara | Daptrius chimango | C |
| 129 | American Kestrel | Falco sparverius | FC |
| Parrots: Psittacidae |
| 130 | Monk Parakeet | Myiopsitta monachus | UC |
| 131 | Maroon-bellied Parakeet | Pyrrhura frontalis | UC |
| Typical Antbirds: Thamnophilidae |
| 132 | Variable Antshrike | Thamnophilus caerulescens | ? |
| Ovenbirds and Woodcreepers: Furnariidae |
| 133 | Common Miner | Geositta cunicularia | FC |
| 134 | Rufous Hornero | Furnarius rufus | A |
| 135 | Wren-like Rushbird | Phleocryptes melanops | UC |
| 136 | Curve-billed Reedhaunter | Limnornis curvirostris | UC |
| 137 | #Buff-winged Cinclodes# | Cinclodes fuscus | FC |
| 138 | Buff-browed Foliage-gleaner | Syndactyla rufosuperciliata | ? |
| 139 | Firewood-gatherer | Anumbius annumbi | ? |
| 140 | Olive Spinetail | Cranioleuca obsoleta | UC |
| 141 | Bay-capped Wren-Spinetail | Spartonoica maluroides | R |
| 142 | Yellow-chinned Spinetail | Certhiaxis cinnamomeus | FC |
| 143 | Spix's Spinetail | Synallaxis spixi | FC |
| Tityras and Allies: Tityridae |
| 144 | Crested Becard | Pachyramphus validus | ? |
| Tyrant Flycatchers: Tyrannidae |
| 145 | Many-colored Rush Tyrant | Tachuris rubrigastra | UC |
| 146 | Southern Beardless-Tyrannulet | Camptostoma obsoletum | ? |
| 147 | Crested Doradito | Pseudocolopteryx sclateri | VR |
| 148 | Small-billed Elaenia | Elaenia parvirostris | ? |
| 149 | Small-headed Elaenia | Elaenia sordida | ? |
| 150 | Sooty Tyrannulet | Serpophaga nigricans | FC |
| 151 | White-crested Tyrannulet | Serpophaga subcristata | ? |
| 152 | Bran-colored Flycatcher | Myiophobus fasciatus | ? |
| 153 | Vermilion Flycatcher | Pyrocephalus rubinus | FC |
| 154 | \Austral Negrito\ | Lessonia rufa | UC |
| 155 | Spectacled Tyrant | Hymenops perspicillatus | FC |
| 156 | (Yellow-browed Tyrant) | Satrapa icterophrys | FC |
| 157 | White Monjita | Xolmis irupero | ? |
| 158 | White-headed Marsh Tyrant | Arundinicola leucocephala | FC |
| 159 | Black-and-white Monjita | Heteroxolmis dominicanus | FC |
| 160 | Cattle Tyrant | Machetornis rixosa | C |
| 161 | Great Kiskadee | Pitangus sulphuratus | C |
| 162 | Tropical Kingbird | Tyrannus melancholicus | ? |
| 163 | Fork-tailed Flycatcher | Tyrannus savana | ? |
| Vireos, Shrike-Babblers, and Erpornis: Vireonidae |
| 164 | Rufous-browed Peppershrike | Cyclarhis gujanensis | FC |
| Swallows: Hirundinidae |
| 165 | White-rumped Swallow | Tachycineta leucorrhoa | C |
| 166 | (Gray-breasted Martin) | Progne chalybea | C |
| 167 | Brown-chested Martin | Progne tapera | ? |
| 168 | Southern Rough-winged Swallow | Stelgidopteryx ruficollis | ? |
| 169 | Blue-and-white Swallow | Pygochelidon cyanoleuca | UC |
| 170 | Tawny-headed Swallow | Alopochelidon fucata | UC |
| 171 | /Barn Swallow/ | Hirundo rustica | ? |
| 172 | /Cliff Swallow/ | Petrochelidon pyrrhonota | ? |
| Gnatcatchers: Polioptilidae |
| 173 | Masked Gnatcatcher | Polioptila dumicola | FC |
| Wrens: Troglodytidae |
| 174 | Southern House Wren | Troglodytes musculus | FC |
| Mockingbirds and Thrashers: Mimidae |
| 175 | Chalk-browed Mockingbird | Mimus saturninus | C |
| Thrushes and Allies: Turdidae |
| 176 | Creamy-bellied Thrush | Turdus amaurochalinus | UC |
| 177 | Rufous-bellied Thrush | Turdus rufiventris | FC |
| Old World Sparrows: Passeridae |
| 178 | House Sparrow | Passer domesticus | ? |
| Wagtails and Pipits: Motacillidae |
| 179 | Yellowish Pipit | Anthus chii | FC |
| 180 | Short-billed Pipit | Anthus furcatus | ? |
| 181 | Correndera Pipit | Anthus correndera | A |
| Finches, Euphonias, and Allies: Fringillidae |
| 182 | Purple-throated Euphonia | Euphonia chlorotica | UC |
| 183 | Hooded Siskin | Spinus magellanicus | ? |
| New World Sparrows: Passerellidae |
| 184 | Grassland Sparrow | Ammodramus humeralis | ? |
| 185 | Rufous-collared Sparrow | Zonotrichia capensis | A |
| Troupials and Allies: Icteridae |
| 186 | White-browed Meadowlark | Leistes superciliaris | FC |
| 187 | Variable Oriole | Icterus pyrrhopterus | UC |
| 188 | Shiny Cowbird | Molothrus bonariensis | C |
| 189 | Scarlet-headed Blackbird | Amblyramphus holosericeus | UC |
| 190 | Pale Baywing | Agelaioides fringillarius | UC |
| 191 | Yellow-winged Blackbird | Agelasticus thilius | UC |
| 192 | Chestnut-capped Blackbird | Chrysomus ruficapillus | FC |
| 193 | Yellow-rumped Marshbird | Pseudoleistes guirahuro | FC |
| 194 | Brown-and-yellow Marshbird | Pseudoleistes virescens | C |
| New World Warblers: Parulidae |
| 195 | Tropical Parula | Setophaga pitiayumi | FC |
| 196 | White-browed Warbler | Myiothlypis leucoblephara | FC |
| Cardinals and Allies: Cardinalidae |
| 197 | Glaucous-blue Grosbeak | Cyanoloxia glaucocaerulea | UC |
| 198 | Ultramarine Grosbeak | Cyanoloxia brissonii | ? |
| Tanagers and Allies: Thraupidae |
| 199 | Red-crested Cardinal | Paroaria coronata | ? |
| 200 | Ruby-crowned Tanager | Tachyphonus coronatus | FC |
| 201 | Diademed Tanager | Stephanophorus diadematus | FC |
| 202 | Blue-and-yellow Tanager | Rauenia bonariensis | FC |
| 203 | Sayaca Tanager | Thraupis sayaca | FC |
| 204 | Black-and-rufous Warbling Finch | Poospiza nigrorufa | UC |
| 205 | Saffron Finch | Sicalis flaveola | FC |
| 206 | Grassland Yellow-Finch | Sicalis luteola | ? |
| 207 | Great Pampa-Finch | Embernagra platensis | ? |
| 208 | Double-collared Seedeater | Sporophila caerulescens | ? |
| 209 | Rusty-collared Seedeater | Sporophila collaris | FC |
| 210 | Bananaquit | Coereba flaveola | UC |
| 211 | Green-winged Saltator | Saltator similis | FC |
Special Birds