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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Charadriiformes | Laridae | European Herring Gull | Gaviota Argéntea | Larus argentatus | Native |
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| 2 | Lesser Black-backed Gull | Gaviota de Lomo Negro Menor | Gaivota-da-asa-escura | Larus fuscus | Native |
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