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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Records | Conservation status | Notes | ||
| 1 | Anseriformes | Anatidae | Chiloe Wigeon | Pato Overo | Marreca-oveira | Mareca sibilatrix | Native | 1 |
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| 2 | Charadriiformes | Laridae | Sandwich Tern | Gaviotín Pico Amarillo | Thalasseus sandvicensis | Native | 1 |
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| 3 | Royal Tern | Gaviotín Real | Trinta-réis-real | Thalasseus maximus | Native | 1 |
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| 4 | Snowy-crowned Tern | Gaviotín Lagunero | Trinta-réis-de-coroa-branca | Sterna trudeaui | Native | 1 |
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