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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Anseriformes | Anatidae | Red-breasted Merganser | Mergo Copetón | Mergus serrator | Native |
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| 2 | Gadwall | Anade Friso | Mareca strepera | Native |
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| 3 | Podicipediformes | Podicipedidae | Horned Grebe | Zampullín Cuellirrojo | Podiceps auritus | Native |
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