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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 | Gruiformes | Rallidae | Red-gartered Coot | Gallareta Ligas Rojas | Carqueja-de-bico-manchado | Fulica armillata | Native |
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| 3 | Charadriiformes | Laridae | Sandwich Tern | Gaviotín Pico Amarillo | Thalasseus sandvicensis | Native |
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| 4 | Royal Tern | Gaviotín Real | Trinta-réis-real | Thalasseus maximus | Native |
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| 5 | Snowy-crowned Tern | Gaviotín Lagunero | Trinta-réis-de-coroa-branca | Sterna trudeaui | Native |
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| 6 | Olrog´s Gull | Gaviota Cangrejera | Gaivota-de-rabo-preto | Larus atlanticus | Native |
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| 7 | Passeriformes | Tyrannidae | Dark-faced Ground Tyrant | Dormilona Cara Negra | Gaúcha-de-cara-suja | Muscisaxicola maclovianus | Native |
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