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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Anseriformes | Anatidae | Black-necked Swan | Cisne Cuello Negro | Cisne-de-pescoço-preto | Cygnus melancoryphus | Native |
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| 2 | Charadriiformes | Haematopodidae | American Oystercatcher | Ostrero Común | Piru-piru | Haematopus palliatus | Native |
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| 3 | Laridae | South American Tern | Gaviotín Sudamericano | Trinta-réis-de-bico-vermelho | Sterna hirundinacea | Native |
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| 4 | Brown-hooded Gull | Gaviota Capucho Café | Gaivota-maria-velha | Chroicocephalus maculipennis | Native |
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| 5 | Kelp Gull | Gaviota Cocinera | Gaivotão | Larus dominicanus | Native |
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| 6 | Sphenisciformes | Spheniscidae | Magellanic Penguin | Pingüino Patagónico | Pinguim-de-magalhães | Spheniscus magellanicus | Native | |||
| 7 | Suliformes | Phalacrocoracidae | Neotropic Cormorant | Biguá | Biguá | Nannopterum brasilianum | Native |
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| 8 | Imperial Shag | Cormorán Imperial | Leucocarbo atriceps | Native |
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