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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Charadriiformes | Laridae | Laughing Gull | Gaviota Reidora Americana | Gaivota-alegre | Leucophaeus atricilla | Native |
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| 2 | Ring-billed Gull | Gaviota de Delaware | Gaivota-de-bico-manchado | Larus delawarensis | Native |
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| 3 | Great Black-backed Gull | Gaviota Dorsinegra Mayor | Larus marinus | Native |
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