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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Anseriformes | Anatidae | Coscoroba Swan | Coscoroba | Capororoca | Coscoroba coscoroba | Native |
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| 2 | Brazilian Teal | Pato Cutirí | Marreca-ananaí | Amazonetta brasiliensis | Native |
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| 3 | Podicipediformes | Podicipedidae | Pied-billed Grebe | Macá Pico Grueso | Mergulhão-caçador | Podilymbus podiceps | Native |
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| 4 | Gruiformes | Aramidae | Limpkin | Carau | Carão | Aramus guarauna | Native |
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| 5 | Rallidae | Common Gallinule | Pollona Negra | Galinha-d’água | Gallinula galeata | Native |
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| 6 | Red-fronted Coot | Gallareta Escudete Rojo | Carqueja-de-escudo-vermelho | Fulica rufifrons | Native |
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| 7 | Charadriiformes | Jacanidae | Wattled Jacana | Jacana | Jaçanã | Jacana jacana | Native |
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| 8 | Pelecaniformes | Ardeidae | Western Cattle Egret | Garcita Bueyera | Garça-vaqueira | Ardea ibis | Native |
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