Spheniscidae
Rheidae
Tinamidae
Podicipedidae
- Great Grebe (Podiceps major)
- Silvery Grebe (Podiceps occipitalis)
- White-tufted Grebe (Rollandia rolland)
Diomedeidae
Procellariidae
- Great Shearwater (Puffinus gravis)
- Northern Giant-petrel (Macronectes halli)
- Sooty Shearwater (Puffinus griseus)
- Southern Giant-petrel (Macronectes giganteus)
Phalacrocoracidae
- Imperial Cormorant (Phalacrocorax atriceps)
- Magellanic Cormorant (Phalacrocorax magellanicus)
- Neotropic Cormorant (Phalacrocorax brasilianus)
Ciconiidae
Ardeidae
- Black-crowned Night-heron (Nycticorax nycticorax)
- Cocoi Heron (Ardea cocoi)
- Great Egret (Ardea alba)
- Snowy Egret (Egretta thula)
Threskiornithidae
Phoenicopteridae
Anatidae
- Argentine Ruddy Duck (Oxyura vittata)
- Ashy-headed Goose (Chloephaga poliocephala)
- Black-headed Duck (Heteronetta atricapilla)
- Black-necked Swan (Cygnus melancoryphus)
- Cinnamon Teal (Spatula cyanoptera)
- Coscoroba Swan (Coscoroba coscoroba)
- Crested Duck (Lophonetta specularioides)
- Flying Steamerduck (Tachyeres patachonicus)
- Red Shoveler (Spatula platalea)
- Rosy-billed pochard (Netta peposaca)
- Silver Teal (Spatula versicolor)
- Southern/Chiloe Wigeon (Mareca sibilatrix)
- Speckled Teal (Anas flavirostris)
- Upland Goose (Chloephaga picta)
- Yellow-billed Pintail (Anas georgica)
Accipitridae
- Cinereous Harrier (Circus cinereus)
- Long-winged Harrier (Circus buffoni)
- Variable Hawk (Geranoaetus polyosoma)
- White-tailed Kite (Elanus leucurus)
Cathartidae
Falconidae
- American Kestrel (Falco sparverius)
- Chimango Caracara (Milvago chimango)
- Peregrine Falcon (Falco peregrinus)
- Southern Caracara (Caracara plancus)
Rallidae
- Plumbeous Rail (Pardirallus sanguinolentus)
- Red-fronted Coot (Fulica rufifrons)
- Red-gartered Coot (Fulica armillata)
- Spot-flanked Gallinule (Porphyriops melanops)
- White-winged Coot (Fulica leucoptera)
Charadriidae
- Rufous-chested plover / Rufous-chested Dotterel (Charadrius modestus)
- Southern Lapwing (Vanellus chilensis)
- Two-banded Plover (Charadrius falklandicus)
Chionidae
Haematopodidae
- American Oystercatcher (Haematopus palliatus)
- Blackish Oystercatcher (Haematopus ater)
- Magellanic Oystercatcher (Haematopus leucopodus)
Laridae
- Brown-hooded Gull (Chroicocephalus maculipennis)
- Dolphin Gull (Leucophaeus scoresbii)
- Kelp Gull (Larus dominicanus)
- Royal Tern (Thalasseus maximus)
- Sandwich Tern (Thalasseus sandvicensis )
- South American Tern (Sterna hirundinacea)
Recurvirostridae
Scolopacidae
- Baird’s Sandpiper (Calidris bairdii)
- Greater Yellowlegs (Tringa melanoleuca)
- Lesser Yellowlegs (Tringa flavipes)
- Sanderling (Calidris alba)
- White-rumped Sandpiper (Calidris fuscicollis)
- Wilson’s Phalarope (Phalaropus tricolor)
Stercorariidae
Thinocoridae
Columbidae
Psittacidae
Strigidae
Tytonidae
Caprimulgidae
Emberizidae
Fringillidae
Furnariidae
- Band-tailed Earthcreeper (Ochetorhynchus phoenicurus)
- Bar-winged Cinclodes (Cinclodes fuscus)
- Cordilleran Canastero (Asthenes modesta)
- Patagonian Canastero (Pseudasthenes patagonica)
- Plain-mantled Tit-spinetail (Leptasthenura aegithaloides)
- Rufous Hornero (Furnarius rufus)
- Scale-throated Earthcreeper (Upucerthia dumetaria)
- Sharp-billed Canastero (Asthenes pyrrholeuca)
- White-throated Cacholote (Pseudoseisura gutturalis)
- Wren-like Rushbird (Phleocryptes melanops)
Hirundinidae
- Blue-and-white swallow (Pygochelidon cyanoleuca)
- Brown-chested martin (Progne tapera)
- Patagonian Swallow (Tachycineta leucopyga)
- Southern Martin (Progne modesta)
Icteridae
- Bay-winged cowbird (Agelaioides badius)
- Long-tailed Meadowlark (Leistes loyca)
- Shiny Cowbird (Molothrus bonariensis)
- Yellow-winged Blackbird (Agelasticus thilius)
Mimidae
- Chalk-browed Mockingbird (Mimus saturninus)
- Patagonian Mockingbird (Mimus patagonicus)
- White-banded Mockingbird (Mimus triurus)
Motacillidae
Passeridae
Thraupidae
- Carbonated Sierra Finch (Porphyrospiza carbonaria)
- Diuca Finch (Diuca diuca)
- Grassland Yellow-finch (Sicalis luteola)
- Mourning Sierra-finch (Phrygilus fruticeti)
- Patagonian Yellow-finch (Sicalis lebruni)
- Red-crested Cardinal (Paroaria coronata)
Troglodytidae
Turdidae
Tyrannidae
- Black-crowned monjita (Xolmis coronatus)
- Chocolate-vented Tyrant (Neoxolmis rufiventris)
- Dark-faced Ground-Tyrant (Muscisaxicola maclovianus)
- Fork-tailed Flycatcher (Tyrannus savana)
- Gray-bellied Shrike-Tyrant (Agriornis micropterus)
- Great Kiskadee (Pitangus sulphuratus)
- Greater Wagtail-tyrant (Stigmatura budytoides)
- Lesser Shrike-tyrant (Agriornis murinus)
- Ochre-naped Ground-tyrant (Muscisaxicola flavinucha)
- Patagonian Negrito (Lessonia rufa)
- Rusty-backed Monjita (Xolmis rubetra)
- Spectacled Tyrant (Hymenops perspicillatus)
- Spot-billed Ground-tyrant (Muscisaxicola maculirostris)
- Tufted Tit-tyrant (Anairetes parulus)
- White-winged Black-tyrant (Knipolegus aterrimus)
- Yellow-billed Tit-tyrant (Anairetes flavirostris)