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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Podicipediformes | Podicipedidae | Great Grebe | Macá Grande | Mergulhao-grande o chorona | Podiceps major | Native |
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| 2 | Charadriiformes | Laridae | Snowy-crowned Tern | Gaviotín Lagunero | Trinta-réis-de-coroa-branca | Sterna trudeaui | Native |
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| 3 | 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 | Olrog´s Gull | Gaviota Cangrejera | Gaivota-de-rabo-preto | Larus atlanticus | Native |
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| 6 | Procellariiformes | Procellariidae | Southern Giant Petrel | Petrel Gigante Común | Petrel-gigante | Macronectes giganteus | Native |
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| 7 | Suliformes | Phalacrocoracidae | Imperial Shag | Cormorán Imperial | Leucocarbo atriceps | Native |
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