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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 | Ringed Teal | Pato de Collar | Marreca-de-coleira | Callonetta leucophrys | Native |
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| 3 | Rosy-billed Pochard | Pato Picazo | Marrecão | Netta peposaca | 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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