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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Records | Conservation status | Notes | ||
| 1 | Sphenisciformes | Spheniscidae | Gentoo Penguin | Pingüino de Vincha | Pygoscelis papua | Native | 1 |
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| 2 | Procellariiformes | Oceanitidae | Wilson´s Storm Petrel | Paíño Común | Alma-de-mestre | Oceanites oceanicus | Native | 1 |
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| 3 | Procellariidae | Southern Giant Petrel | Petrel Gigante Común | Petrel-gigante | Macronectes giganteus | Native | 2 |
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| 4 | Carnivora | Phocidae | Weddell Seal | Foca de Weddell | Leptonychotes weddellii | Native | 1 |
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| 5 | Southern Elephant Seal | Elefante Marino del Sur | Mirounga leonina | Native | 2 |
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