This checklist includes all bird species found in Buenos Aires , based on the best information available at this time. It is based on a wide variety of sources that I collated over many years. I am pleased to offer these checklists as a service to birdwatchers. If you find any error, please do not hesitate to .
The taxonomic order and nomenclature follows Howard and Moore 4th edition (incl. corrigenda vol.1-2). If you prefer to view the list based on a different authority, click on one of the list available below. Globally threatened species (status in red) were identified by Birdlife International in Birdlife Data Zone (species).
Bird Checklists of the World is part of Avibase and Bird links to the World, which are designed and maintained by Denis Lepage, and hosted by Birds Canada, which is a co-partner of Birdlife International.
© Denis Lepage 2026
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Country or region: Buenos Aires [map]
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| Greater Rhea | Rhea americana | Near-threatened |
| Lesser Rhea | Rhea pennata | |
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| Red-winged Tinamou | Rhynchotus rufescens | |
| Brushland Tinamou | Nothoprocta cinerascens | |
| Darwin's Nothura | Nothura darwinii | |
| Spotted Nothura | Nothura maculosa | |
| Elegant Crested Tinamou | Eudromia elegans | |
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| Southern Screamer | Chauna torquata | |
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| White-faced Whistling Duck | Dendrocygna viduata | |
| Black-bellied Whistling Duck | Dendrocygna autumnalis | |
| Fulvous Whistling Duck | Dendrocygna bicolor | |
| Black-headed Duck | Heteronetta atricapilla | |
| Masked Duck | Nomonyx dominicus | |
| Lake Duck | Oxyura vittata | |
| Coscoroba Swan | Coscoroba coscoroba | |
| Black-necked Swan | Cygnus melancoryphus | |
| Upland Goose | Chloephaga picta | |
| Ashy-headed Goose | Chloephaga poliocephala | |
| Ruddy-headed Goose | Chloephaga rubidiceps | |
| Rosy-billed Pochard | Netta peposaca | |
| Flying Steamer Duck | Tachyeres patachonicus | |
| Brazilian Teal | Amazonetta brasiliensis | |
| Silver Teal | Spatula versicolor | |
| Red Shoveler | Spatula platalea | |
| Cinnamon Teal | Spatula cyanoptera | |
| Blue-winged Teal | Spatula discors | Rare/Accidental |
| Chiloe Wigeon | Mareca sibilatrix | |
| Mallard | Anas platyrhynchos | Introduced species |
| White-cheeked Pintail | Anas bahamensis | |
| Yellow-billed Pintail | Anas georgica | |
| Speckled Teal | Anas flavirostris | |
| Comb Duck | Sarkidiornis melanotos | |
| Ringed Teal | Callonetta leucophrys | |
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| Dusky-legged Guan | Penelope obscura | |
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| Chilean Flamingo | Phoenicopterus chilensis | Near-threatened |
| Andean Flamingo | Phoenicoparrus andinus | Vulnerable |
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| Pied-billed Grebe | Podilymbus podiceps | |
| Least Grebe | Tachybaptus dominicus | |
| White-tufted Grebe | Rollandia rolland | |
| Great Grebe | Podiceps major | |
| Silvery Grebe | Podiceps occipitalis | |
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| Rock Dove | Columba livia | Introduced species |
| Picazuro Pigeon | Patagioenas picazuro | |
| Spot-winged Pigeon | Patagioenas maculosa | |
| White-tipped Dove | Leptotila verreauxi | |
| Gray-fronted Dove | Leptotila rufaxilla | |
| Eared Dove | Zenaida auriculata | |
| Ruddy Ground Dove | Columbina talpacoti | |
| Picui Ground Dove | Columbina picui | |
| Blue Ground Dove | Claravis pretiosa | |
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| Common Potoo | Nyctibius griseus | |
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| Nacunda Nighthawk | Chordeiles nacunda | |
| Common Nighthawk | Chordeiles minor | |
| Band-winged Nightjar | Systellura longirostris | |
| Sickle-winged Nightjar | Eleothreptus anomalus | Vulnerable |
| Little Nightjar | Setopagis parvula | |
| Scissor-tailed Nightjar | Hydropsalis torquata | |
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| Sick's Swift | Chaetura meridionalis | |
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| White-necked Jacobin | Florisuga mellivora | Rare/Accidental |
| Black Jacobin | Florisuga fusca | |
| Green-backed Firecrown | Sephanoides sephaniodes | |
| Giant Hummingbird | Patagona gigas | |
| Glittering-bellied Emerald | Chlorostilbon lucidus | |
| White-throated Hummingbird | Leucochloris albicollis | |
| White-chinned Sapphire | Hylocharis cyanus | Rare/Accidental |
| Gilded Hummingbird | Hylocharis chrysura | |
| Blue-tufted Starthroat | Heliomaster furcifer | |
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| Greater Ani | Crotophaga major | |
| Smooth-billed Ani | Crotophaga ani | |
| Guira Cuckoo | Guira guira | |
| Striped Cuckoo | Tapera naevia | |
| Ash-colored Cuckoo | Coccycua cinerea | |
| Squirrel Cuckoo | Piaya cayana | |
| Yellow-billed Cuckoo | Coccyzus americanus | |
| Dark-billed Cuckoo | Coccyzus melacoryphus | |
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| Speckled Rail | Coturnicops notatus | |
| Rufous-sided Crake | Laterallus melanophaius | |
| Red-and-white Crake | Laterallus leucopyrrhus | |
| Austral Rail | Rallus antarcticus | Vulnerable |
| Giant Wood Rail | Aramides ypecaha | |
| Gray-necked Wood Rail | Aramides cajaneus | |
| Spotted Rail | Pardirallus maculatus | |
| Plumbeous Rail | Pardirallus sanguinolentus | |
| Yellow-breasted Crake | Hapalocrex flaviventer | |
| Dot-winged Crake | Porzana spiloptera | Near-threatened |
| Ash-throated Crake | Porzana albicollis | |
| Purple Gallinule | Porphyrio martinicus | |
| Common Gallinule | Gallinula galeata | |
| Spot-flanked Gallinule | Gallinula melanops | |
| White-winged Coot | Fulica leucoptera | |
| Red-gartered Coot | Fulica armillata | |
| Red-fronted Coot | Fulica rufifrons | |
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| Limpkin | Aramus guarauna | |
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| King Penguin | Aptenodytes patagonicus | |
| Gentoo Penguin | Pygoscelis papua | |
| Chinstrap Penguin | Pygoscelis antarcticus | |
| Macaroni Penguin | Eudyptes chrysolophus | |
| Southern Rockhopper Penguin | Eudyptes chrysocome | Rare/Accidental Vulnerable |
| Magellanic Penguin | Spheniscus magellanicus | |
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| Wilson's Storm-petrel | Oceanites oceanicus | |
| White-bellied Storm-petrel | Fregetta grallaria | Rare/Accidental |
| Black-bellied Storm-petrel | Fregetta tropica | Rare/Accidental |
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| Royal Albatross | Diomedea epomophora | |
| Wandering Albatross | Diomedea exulans | |
| Sooty Albatross | Phoebetria fusca | Endangered |
| Yellow-nosed Albatross | Thalassarche chlororhynchos | |
| Grey-headed Albatross | Thalassarche chrysostoma | Endangered |
| Black-browed Albatross | Thalassarche melanophris | |
| White-capped Albatross | Thalassarche cauta | |
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| Leach's Storm-petrel | Hydrobates leucorhous | Rare/Accidental |
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| Northern Giant Petrel | Macronectes halli | |
| Southern Giant Petrel | Macronectes giganteus | |
| Southern Fulmar | Fulmarus glacialoides | |
| Cape Petrel | Daption capense | |
| Blue Petrel | Halobaena caerulea | |
| Antarctic Prion | Pachyptila desolata | |
| Slender-billed Prion | Pachyptila belcheri | |
| Kerguelen Petrel | Aphrodroma brevirostris | Rare/Accidental |
| Herald Petrel | Pterodroma arminjoniana | Rare/Accidental |
| Soft-plumaged Petrel | Pterodroma mollis | Rare/Accidental |
| Atlantic Petrel | Pterodroma incerta | Rare/Accidental Endangered |
| White-headed Petrel | Pterodroma lessonii | Rare/Accidental |
| Grey Petrel | Procellaria cinerea | Rare/Accidental Near-threatened |
| White-chinned Petrel | Procellaria aequinoctialis | Vulnerable |
| Spectacled Petrel | Procellaria conspicillata | Rare/Accidental Vulnerable |
| Sooty Shearwater | Ardenna grisea | Near-threatened |
| Great Shearwater | Ardenna gravis | |
| Cory's Shearwater | Calonectris borealis | |
| Cape Verde Shearwater | Calonectris edwardsii | Rare/Accidental Near-threatened |
| Manx Shearwater | Puffinus puffinus | |
| Little Shearwater | Puffinus assimilis | |
| Common Diving Petrel | Pelecanoides urinatrix | |
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| Wood Stork | Mycteria americana | |
| Maguari Stork | Ciconia maguari | |
| Jabiru | Jabiru mycteria | |
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| Rufescent Tiger Heron | Tigrisoma lineatum | |
| Pinnated Bittern | Botaurus pinnatus | |
| Stripe-backed Bittern | Ixobrychus involucris | |
| Black-crowned Night Heron | Nycticorax nycticorax | |
| Striated Heron | Butorides striata | |
| Cattle Egret | Bubulcus ibis | |
| Cocoi Heron | Ardea cocoi | |
| Great Egret | Ardea alba | |
| Whistling Heron | Syrigma sibilatrix | |
| Little Blue Heron | Egretta caerulea | Rare/Accidental |
| Snowy Egret | Egretta thula | |
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| Roseate Spoonbill | Platalea ajaja | |
| Plumbeous Ibis | Theristicus caerulescens | |
| Buff-necked Ibis | Theristicus caudatus | |
| Black-faced Ibis | Theristicus melanopis | |
| Bare-faced Ibis | Phimosus infuscatus | |
| White-faced Ibis | Plegadis chihi | |
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| Magnificent Frigatebird | Fregata magnificens | Rare/Accidental |
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| Cape Gannet | Morus capensis | Rare/Accidental Endangered |
| Brown Booby | Sula leucogaster | Rare/Accidental |
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| Magellanic Cormorant | Phalacrocorax magellanicus | |
| Imperial Cormorant | Phalacrocorax atriceps | |
| Neotropic Cormorant | Phalacrocorax brasilianus | |
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| Anhinga | Anhinga anhinga | |
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| Snowy Sheathbill | Chionis albus | |
| Magellanic Plover | Pluvianellus socialis | Vulnerable |
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| Magellanic Oystercatcher | Haematopus leucopodus | |
| Blackish Oystercatcher | Haematopus ater | |
| American Oystercatcher | Haematopus palliatus | |
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| Andean Avocet | Recurvirostra andina | |
| Black-winged Stilt | Himantopus himantopus | |
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| Grey Plover | Pluvialis squatarola | Vulnerable |
| American Golden Plover | Pluvialis dominica | |
| Tawny-throated Dotterel | Oreopholus ruficollis | |
| Semipalmated Plover | Charadrius semipalmatus | |
| Collared Plover | Charadrius collaris | |
| Two-banded Plover | Charadrius falklandicus | |
| Lesser Sand Plover | Charadrius mongolus | Rare/Accidental |
| Rufous-chested Dotterel | Charadrius modestus | |
| Southern Lapwing | Vanellus chilensis | |
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| Least Seedsnipe | Thinocorus rumicivorus | |
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| South American Painted-snipe | Nycticryphes semicollaris | Near-threatened |
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| Wattled Jacana | Jacana jacana | |
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| Upland Sandpiper | Bartramia longicauda | |
| Whimbrel | Numenius phaeopus | Rare/Accidental |
| Eskimo Curlew | Numenius borealis | Extirpated Critically endangered (possibly extinct) |
| Eurasian Curlew | Numenius arquata | Rare/Accidental Near-threatened |
| Marbled Godwit | Limosa fedoa | Rare/Accidental Vulnerable |
| Hudsonian Godwit | Limosa haemastica | Vulnerable |
| Ruddy Turnstone | Arenaria interpres | Near-threatened |
| Red Knot | Calidris canutus | Near-threatened |
| Stilt Sandpiper | Calidris himantopus | Near-threatened |
| Curlew Sandpiper | Calidris ferruginea | Rare/Accidental Vulnerable |
| Sanderling | Calidris alba | |
| Baird's Sandpiper | Calidris bairdii | |
| Least Sandpiper | Calidris minutilla | Rare/Accidental Near-threatened |
| White-rumped Sandpiper | Calidris fuscicollis | Vulnerable |
| Buff-breasted Sandpiper | Calidris subruficollis | Vulnerable |
| Pectoral Sandpiper | Calidris melanotos | |
| Semipalmated Sandpiper | Calidris pusilla | Rare/Accidental Near-threatened |
| Short-billed Dowitcher | Limnodromus griseus | Rare/Accidental Vulnerable |
| South American Snipe | Gallinago paraguaiae | |
| Terek Sandpiper | Xenus cinereus | Rare/Accidental |
| Spotted Sandpiper | Actitis macularius | |
| Solitary Sandpiper | Tringa solitaria | |
| Willet | Tringa semipalmata | |
| Lesser Yellowlegs | Tringa flavipes | Vulnerable |
| Greater Yellowlegs | Tringa melanoleuca | Near-threatened |
| Wilson's Phalarope | Steganopus tricolor | |
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| Long-tailed Skua | Stercorarius longicaudus | |
| Arctic Skua | Stercorarius parasiticus | |
| Pomarine Skua | Stercorarius pomarinus | Rare/Accidental |
| South Polar Skua | Stercorarius maccormicki | |
| Brown Skua | Stercorarius antarcticus | |
| Chilean Skua | Stercorarius chilensis | |
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| Black Skimmer | Rynchops niger | |
| Sabine's Gull | Xema sabini | Rare/Accidental |
| Brown-hooded Gull | Chroicocephalus maculipennis | |
| Gray-hooded Gull | Chroicocephalus cirrocephalus | |
| Dolphin Gull | Leucophaeus scoresbii | |
| Gray Gull | Leucophaeus modestus | Rare/Accidental |
| Franklin's Gull | Leucophaeus pipixcan | |
| Olrog's Gull | Larus atlanticus | Endemic (country/region) Near-threatened |
| Kelp Gull | Larus dominicanus | |
| Lesser Black-backed Gull | Larus fuscus | Rare/Accidental |
| Least Tern | Sternula antillarum | Rare/Accidental |
| Yellow-billed Tern | Sternula superciliaris | |
| Large-billed Tern | Phaetusa simplex | |
| Gull-billed Tern | Gelochelidon nilotica | |
| Black Tern | Chlidonias niger | Rare/Accidental |
| South American Tern | Sterna hirundinacea | |
| Common Tern | Sterna hirundo | |
| Arctic Tern | Sterna paradisaea | |
| Antarctic Tern | Sterna vittata | Rare/Accidental |
| Snowy-crowned Tern | Sterna trudeaui | |
| Sandwich Tern | Thalasseus sandvicensis | |
| Royal Tern | Thalasseus maximus | |
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| Turkey Vulture | Cathartes aura | |
| Lesser Yellow-headed Vulture | Cathartes burrovianus | |
| Black Vulture | Coragyps atratus | |
| King Vulture | Sarcoramphus papa | |
| Andean Condor | Vultur gryphus | Vulnerable |
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| Osprey | Pandion haliaetus | |
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| White-tailed Kite | Elanus leucurus | |
| Swallow-tailed Kite | Elanoides forficatus | Rare/Accidental |
| Long-winged Harrier | Circus buffoni | |
| Cinereous Harrier | Circus cinereus | |
| Sharp-shinned Hawk | Accipiter striatus | |
| Bicolored Hawk | Accipiter bicolor | |
| Black-collared Hawk | Busarellus nigricollis | |
| Crane Hawk | Geranospiza caerulescens | |
| Mississippi Kite | Ictinia mississippiensis | |
| Plumbeous Kite | Ictinia plumbea | |
| Snail Kite | Rostrhamus sociabilis | |
| Roadside Hawk | Rupornis magnirostris | |
| Harris's Hawk | Parabuteo unicinctus | |
| Savanna Hawk | Buteogallus meridionalis | |
| Great Black Hawk | Buteogallus urubitinga | |
| Crowned Solitary Eagle | Buteogallus coronatus | Rare/Accidental Endangered |
| White-tailed Hawk | Geranoaetus albicaudatus | |
| Variable Hawk | Geranoaetus polyosoma | |
| Black-chested Buzzard Eagle | Geranoaetus melanoleucus | |
| Broad-winged Hawk | Buteo platypterus | |
| White-throated Hawk | Buteo albigula | |
| Short-tailed Hawk | Buteo brachyurus | |
| Swainson's Hawk | Buteo swainsoni | |
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| Common Barn Owl | Tyto alba | |
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| Ferruginous Pygmy Owl | Glaucidium brasilianum | |
| Austral Pygmy Owl | Glaucidium nana | |
| Burrowing Owl | Athene cunicularia | |
| Striped Owl | Asio clamator | |
| Short-eared Owl | Asio flammeus | |
| Tropical Screech Owl | Megascops choliba | |
| Chaco Owl | Strix chacoensis | Near-threatened |
| Great Horned Owl | Bubo virginianus | |
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| White-barred Piculet | Picumnus cirratus | |
| Green-barred Woodpecker | Colaptes melanochloros | |
| Campo Flicker | Colaptes campestris | |
| Cream-backed Woodpecker | Campephilus leucopogon | Rare/Accidental |
| White Woodpecker | Melanerpes candidus | |
| White-fronted Woodpecker | Melanerpes cactorum | |
| Checkered Woodpecker | Veniliornis mixtus | |
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| Toco Toucan | Ramphastos toco | Uncertain origin |
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| Ringed Kingfisher | Megaceryle torquata | |
| Amazon Kingfisher | Chloroceryle amazona | |
| Green Kingfisher | Chloroceryle americana | |
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| Red-legged Seriema | Cariama cristata | |
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| Spot-winged Falconet | Spiziapteryx circumcincta | |
| Southern Caracara | Caracara plancus | |
| Chimango Caracara | Phalcoboenus chimango | |
| American Kestrel | Falco sparverius | |
| Aplomado Falcon | Falco femoralis | |
| Peregrine Falcon | Falco peregrinus | |
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| Monk Parakeet | Myiopsitta monachus | |
| Yellow-chevroned Parakeet | Brotogeris chiriri | Introduced species |
| Scaly-headed Parrot | Pionus maximiliani | |
| Turquoise-fronted Parrot | Amazona aestiva | Introduced species Near-threatened |
| Blue-winged Parrotlet | Forpus xanthopterygius | |
| Maroon-bellied Parakeet | Pyrrhura frontalis | Introduced species |
| Green-cheeked Parakeet | Pyrrhura molinae | |
| Burrowing Parakeet | Cyanoliseus patagonus | |
| Nanday Parakeet | Aratinga nenday | Introduced species |
| Blue-crowned Parakeet | Psittacara acuticaudatus | |
| Mitred Parakeet | Psittacara mitratus | Introduced species |
| White-eyed Parakeet | Psittacara leucophthalmus | |
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| White-tipped Plantcutter | Phytotoma rutila | |
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| White-naped Xenopsaris | Xenopsaris albinucha | |
| Green-backed Becard | Pachyramphus viridis | |
| White-winged Becard | Pachyramphus polychopterus | |
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| Many-colored Rush Tyrant | Tachuris rubrigastra | |
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| Mottle-cheeked Tyrannulet | Phylloscartes ventralis | |
| Sepia-capped Flycatcher | Leptopogon amaurocephalus | |
| Pearly-vented Tody Tyrant | Hemitriccus margaritaceiventer | |
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| Greater Wagtail Tyrant | Stigmatura budytoides | |
| Tawny-crowned Pygmy Tyrant | Euscarthmus meloryphus | |
| Southern Beardless Tyrannulet | Camptostoma obsoletum | |
| Small-billed Elaenia | Elaenia parvirostris | |
| Large Elaenia | Elaenia spectabilis | |
| White-crested Elaenia | Elaenia albiceps | |
| Suiriri Flycatcher | Suiriri suiriri | |
| Bearded Tachuri | Polystictus pectoralis | Near-threatened |
| Crested Doradito | Pseudocolopteryx sclateri | |
| Subtropical Doradito | Pseudocolopteryx acutipennis | |
| Warbling Doradito | Pseudocolopteryx flaviventris | |
| Ticking Doradito | Pseudocolopteryx citreola | |
| Sooty Tyrannulet | Serpophaga nigricans | |
| White-crested Tyrannulet | Serpophaga subcristata | |
| White-bellied Tyrannulet | Serpophaga munda | |
| Straneck's Tyrannulet | Serpophaga griseicapilla | |
| Yellow-billed Tit Tyrant | Anairetes flavirostris | |
| Tufted Tit Tyrant | Anairetes parulus | |
| Great Kiskadee | Pitangus sulphuratus | |
| Lesser Kiskadee | Pitangus lictor | Rare/Accidental |
| Cattle Tyrant | Machetornis rixosa | |
| Streaked Flycatcher | Myiodynastes maculatus | |
| Variegated Flycatcher | Empidonomus varius | Rare/Accidental |
| Crowned Slaty Flycatcher | Griseotyrannus aurantioatrocristatus | |
| Tropical Kingbird | Tyrannus melancholicus | |
| Eastern Kingbird | Tyrannus tyrannus | |
| Fork-tailed Flycatcher | Tyrannus savana | |
| Swainson's Flycatcher | Myiarchus swainsoni | |
| Brown-crested Flycatcher | Myiarchus tyrannulus | |
| Bran-colored Flycatcher | Myiophobus fasciatus | |
| Southern Scrub Flycatcher | Sublegatus modestus | |
| Vermilion Flycatcher | Pyrocephalus rubinus | |
| Black-backed Water Tyrant | Fluvicola albiventer | |
| Masked Water Tyrant | Fluvicola nengeta | |
| Strange-tailed Tyrant | Alectrurus risora | Vulnerable |
| Austral Negrito | Lessonia rufa | |
| Spectacled Tyrant | Hymenops perspicillatus | |
| Blue-billed Black Tyrant | Knipolegus cyanirostris | |
| Hudson's Black Tyrant | Knipolegus hudsoni | Endemic (country/region) |
| White-winged Black Tyrant | Knipolegus aterrimus | |
| Yellow-browed Tyrant | Satrapa icterophrys | |
| Dark-faced Ground Tyrant | Muscisaxicola maclovianus | |
| Fire-eyed Diucon | Xolmis pyrope | |
| Gray Monjita | Xolmis cinereus | |
| Black-crowned Monjita | Xolmis coronatus | |
| White Monjita | Xolmis irupero | |
| Rusty-backed Monjita | Xolmis rubetra | Endemic (country/region) |
| Black-and-white Monjita | Xolmis dominicanus | Vulnerable |
| Black-billed Shrike Tyrant | Agriornis montanus | |
| Gray-bellied Shrike Tyrant | Agriornis micropterus | |
| Lesser Shrike Tyrant | Agriornis murinus | Endemic (country/region) |
| Chocolate-vented Tyrant | Neoxolmis rufiventris | |
| Euler's Flycatcher | Lathrotriccus euleri | |
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| Rufous-capped Antshrike | Thamnophilus ruficapillus | |
| Variable Antshrike | Thamnophilus caerulescens | |
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| Crested Gallito | Rhinocrypta lanceolata | |
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| Common Miner | Geositta cunicularia | |
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| Scimitar-billed Woodcreeper | Drymornis bridgesii | |
| Narrow-billed Woodcreeper | Lepidocolaptes angustirostris | |
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| Chaco Earthcreeper | Tarphonomus certhioides | |
| Rufous Hornero | Furnarius rufus | |
| Wren-like Rushbird | Phleocryptes melanops | |
| Curve-billed Reed-haunter | Limnornis curvirostris | |
| Scaly-throated Earthcreeper | Upucerthia dumetaria | |
| Bar-winged Cinclodes | Cinclodes fuscus | |
| Buff-browed Foliage-gleaner | Syndactyla rufosuperciliata | |
| Tufted Tit Spinetail | Leptasthenura platensis | |
| Plain-mantled Tit Spinetail | Leptasthenura aegithaloides | |
| Little Thornbird | Phacellodomus sibilatrix | |
| Freckle-breasted Thornbird | Phacellodomus striaticollis | |
| Greater Thornbird | Phacellodomus ruber | |
| Firewood-gatherer | Anumbius annumbi | |
| Lark-like Brushrunner | Coryphistera alaudina | |
| Short-billed Canastero | Asthenes baeri | |
| Austral Canastero | Asthenes anthoides | |
| Hudson's Canastero | Asthenes hudsoni | Near-threatened |
| Cordilleran Canastero | Asthenes modesta | |
| Sharp-billed Canastero | Asthenes pyrrholeuca | |
| Straight-billed Reed-haunter | Limnoctites rectirostris | Near-threatened |
| Sulfur-throated Spinetail | Cranioleuca sulphurifera | |
| Stripe-crowned Spinetail | Cranioleuca pyrrhophia | |
| Patagonian Canastero | Pseudasthenes patagonica | Endemic (country/region) |
| Steinbach's Canastero | Pseudasthenes steinbachi | Endemic (country/region) |
| Bay-capped Wren Spinetail | Spartonoica maluroides | |
| Brown Cachalote | Pseudoseisura lophotes | |
| White-throated Cachalote | Pseudoseisura gutturalis | Endemic (country/region) |
| Chotoy Spinetail | Schoeniophylax phryganophilus | |
| Yellow-chinned Spinetail | Certhiaxis cinnamomeus | |
| Spix's Spinetail | Synallaxis spixi | |
| Pale-breasted Spinetail | Synallaxis albescens | |
| Sooty-fronted Spinetail | Synallaxis frontalis | |
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| Rufous-browed Peppershrike | Cyclarhis gujanensis | |
| Red-eyed Vireo | Vireo olivaceus | |
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| House Crow | Corvus splendens | Uncertain origin |
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| Common Waxbill | Estrilda astrild | Uncertain origin |
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| House Sparrow | Passer domesticus | Introduced species |
| Italian Sparrow | Passer italiae | Introduced species Vulnerable |
| ||
| Short-billed Pipit | Anthus furcatus | |
| Yellowish Pipit | Anthus lutescens | |
| Pampas Pipit | Anthus chacoensis | |
| Hellmayr's Pipit | Anthus hellmayri | |
| Correndera Pipit | Anthus correndera | |
| ||
| European Greenfinch | Chloris chloris | Introduced species |
| European Goldfinch | Carduelis carduelis | Introduced species |
| Hooded Siskin | Spinus magellanicus | |
| Black-chinned Siskin | Spinus barbatus | |
| ||
| Stripe-capped Sparrow | Rhynchospiza strigiceps | |
| Grassland Sparrow | Ammodramus humeralis | |
| Rufous-collared Sparrow | Zonotrichia capensis | |
| ||
| Northern Waterthrush | Parkesia noveboracensis | Rare/Accidental |
| Masked Yellowthroat | Geothlypis aequinoctialis | |
| Common Yellowthroat | Geothlypis trichas | Rare/Accidental |
| American Redstart | Setophaga ruticilla | Rare/Accidental |
| Tropical Parula | Setophaga pitiayumi | |
| White-browed Warbler | Myiothlypis leucoblephara | |
| Golden-crowned Warbler | Basileuterus culicivorus | |
| ||
| Bobolink | Dolichonyx oryzivorus | Near-threatened |
| White-browed Blackbird | Leistes superciliaris | |
| Pampas Meadowlark | Leistes defilippii | Vulnerable |
| Long-tailed Meadowlark | Leistes loyca | |
| Crested Oropendola | Psarocolius decumanus | |
| Solitary Cacique | Procacicus solitarius | |
| Golden-winged Cacique | Cacicus chrysopterus | |
| Orange-backed Troupial | Icterus croconotus | |
| Variable Oriole | Icterus pyrrhopterus | |
| Screaming Cowbird | Molothrus rufoaxillaris | |
| Giant Cowbird | Molothrus oryzivorus | |
| Shiny Cowbird | Molothrus bonariensis | |
| Scarlet-headed Blackbird | Amblyramphus holosericeus | |
| Baywing Blackbird | Agelaioides badius | |
| Unicolored Blackbird | Agelasticus cyanopus | |
| Yellow-winged Blackbird | Agelasticus thilius | |
| Chestnut-capped Blackbird | Chrysomus ruficapillus | |
| Saffron-cowled Blackbird | Xanthopsar flavus | Endangered |
| Yellow-rumped Marshbird | Pseudoleistes guirahuro | |
| Brown-and-yellow Marshbird | Pseudoleistes virescens | |
| ||
| Black-backed Grosbeak | Pheucticus aureoventris | |
| Ultramarine Grosbeak | Cyanoloxia brissonii | |
| Glaucous-blue Grosbeak | Cyanoloxia glaucocaerulea | |
| Scarlet Tanager | Piranga olivacea | Rare/Accidental |
| Hepatic Tanager | Piranga flava | |
| ||
| Hooded Tanager | Nemosia pileata | |
| Patagonian Yellow Finch | Sicalis lebruni | |
| Greater Yellow Finch | Sicalis auriventris | |
| Saffron Finch | Sicalis flaveola | |
| Grassland Yellow Finch | Sicalis luteola | |
| Gray-hooded Sierra Finch | Phrygilus gayi | |
| Band-tailed Seedeater | Catamenia analis | |
| Blue-black Grassquit | Volatinia jacarina | |
| White-lined Tanager | Tachyphonus rufus | |
| Ruby-crowned Tanager | Tachyphonus coronatus | |
| Red-crested Finch | Coryphospingus cucullatus | |
| Swallow Tanager | Tersina viridis | |
| Lined Seedeater | Sporophila lineola | |
| White-bellied Seedeater | Sporophila leucoptera | |
| Chestnut Seedeater | Sporophila cinnamomea | Vulnerable |
| Marsh Seedeater | Sporophila palustris | Endangered |
| Tawny-bellied Seedeater | Sporophila hypoxantha | |
| Dark-throated Seedeater | Sporophila ruficollis | Near-threatened |
| Double-collared Seedeater | Sporophila caerulescens | |
| Rusty-collared Seedeater | Sporophila collaris | |
| Many-colored Chaco Finch | Saltatricula multicolor | |
| Grayish Saltator | Saltator coerulescens | |
| Green-winged Saltator | Saltator similis | |
| Golden-billed Saltator | Saltator aurantiirostris | |
| Pampa Finch | Embernagra platensis | |
| Cinnamon Warbling Finch | Poospiza ornata | Endemic (country/region) |
| Black-and-rufous Warbling Finch | Poospiza nigrorufa | |
| Chestnut-headed Tanager | Pyrrhocoma ruficeps | |
| Orange-headed Tanager | Thlypopsis sordida | |
| Gray-throated Warbling Finch | Microspingus cabanisi | |
| Black-capped Warbling Finch | Microspingus melanoleucus | |
| Ringed Warbling Finch | Microspingus torquatus | |
| Long-tailed Reed Finch | Donacospiza albifrons | |
| Mourning Sierra Finch | Rhopospina fruticeti | |
| Carbon Finch | Rhopospina carbonaria | Endemic (country/region) |
| Bananaquit | Coereba flaveola | |
| Dull-colored Grassquit | Tiaris obscurus | Uncertain origin |
| Common Diuca Finch | Diuca diuca | |
| Yellow Cardinal | Gubernatrix cristata | Endangered |
| Red-crested Cardinal | Paroaria coronata | |
| Yellow-billed Cardinal | Paroaria capitata | |
| Diademed Tanager | Stephanophorus diadematus | |
| Black-faced Tanager | Schistochlamys melanopis | Rare/Accidental |
| Fawn-breasted Tanager | Pipraeidea melanonota | |
| Blue-and-yellow Tanager | Pipraeidea bonariensis | |
| Sayaca Tanager | Tangara sayaca | |
| Chestnut-backed Tanager | Tangara preciosa | |
| ||
| Cliff Swallow | Petrochelidon pyrrhonota | |
| Barn Swallow | Hirundo rustica | |
| Sand Martin | Riparia riparia | |
| White-rumped Swallow | Tachycineta leucorrhoa | |
| Chilean Swallow | Tachycineta leucopyga | |
| Brown-chested Martin | Progne tapera | |
| Purple Martin | Progne subis | |
| Gray-breasted Martin | Progne chalybea | |
| Southern Martin | Progne elegans | |
| Southern Rough-winged Swallow | Stelgidopteryx ruficollis | |
| Blue-and-white Swallow | Pygochelidon cyanoleuca | |
| Tawny-headed Swallow | Alopochelidon fucata | |
| ||
| House Wren | Troglodytes aedon | |
| Sedge Wren | Cistothorus platensis | |
| ||
| Masked Gnatcatcher | Polioptila dumicola | |
| ||
| Patagonian Mockingbird | Mimus patagonicus | |
| Chalk-browed Mockingbird | Mimus saturninus | |
| White-banded Mockingbird | Mimus triurus | |
| ||
| Common Starling | Sturnus vulgaris | Introduced species |
| Crested Myna | Acridotheres cristatellus | Introduced species |
| ||
| Swainson's Thrush | Catharus ustulatus | |
| Rufous-bellied Thrush | Turdus rufiventris | |
| Austral Thrush | Turdus falcklandii | |
| Chiguanco Thrush | Turdus chiguanco | |
| Creamy-bellied Thrush | Turdus amaurochalinus | |
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