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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Charadriiformes | Chionidae | Snowy Sheathbill | Paloma Antártica | Pomba-antártica | Chionis albus | Native |
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| 2 | Stercorariidae | South Polar Skua | Salteador Polar | Mandrião-do-sul | Stercorarius maccormicki | Native |
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| 3 | Sphenisciformes | Spheniscidae | Emperor Penguin | Pingüino Emperador | Aptenodytes forsteri | Not listed |
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| 4 | Carnivora | Otariidae | Antarctic Fur Seal | Lobo Marino de dos Pelos Antártico | Arctocephalus gazella | Native |
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| 5 | Phocidae | Leopard Seal | Foca Leopardo | Hydrurga leptonyx | Native |
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| 6 | Weddell Seal | Foca de Weddell | Leptonychotes weddellii | Native |
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| 7 | Crabeater Seal | Foca Cangrejera | Lobodon carcinophaga | Native |
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