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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Anseriformes | Anatidae | Rosy-billed Pochard | Pato Picazo | Marrecão | Netta peposaca | Native |
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| 2 | Charadriiformes | Laridae | Gull-billed Tern | Gaviotín Pico Grueso | Trinta-réis-de-bico-preto | Gelochelidon nilotica | Native |
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| 3 | Grey-headed Gull | Gaviota Capucho Gris | Gaivota-de-cabeça-cinza | Chroicocephalus cirrocephalus | Native |
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| 4 | Brown-hooded Gull | Gaviota Capucho Café | Gaivota-maria-velha | Chroicocephalus maculipennis | Native |
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| 5 | Passeriformes | Tyrannidae | Sooty Tyrannulet | Piojito Gris | João-pobre | Serpophaga nigricans | Native |
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| 6 | Icteridae | Brown-and-yellow Marshbird | Pecho Amarillo Común | Dragão | Pseudoleistes virescens | Native |
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| 7 | Thraupidae | Black-and-rufous Warbling Finch | Sietevestidos Común | Quem-te-vestiu | Poospiza nigrorufa | Native |
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