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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Records | Conservation status | Notes | ||
| 1 | Charadriiformes | Laridae | Black-headed Gull | Gaviota Reidora | Guincho-comum | Chroicocephalus ridibundus | Native | 1 |
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| 2 | Caspian Gull | Gaviota Caspia | Larus cachinnans | Not listed | 1 |
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| 3 | Suliformes | Phalacrocoracidae | Great Cormorant | Cormorán Grande | Phalacrocorax carbo | Native | 1 |
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