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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Anseriformes | Anatidae | Black-necked Swan | Cisne Cuello Negro | Cisne-de-pescoço-preto | Cygnus melancoryphus | Native |
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| 2 | Podicipediformes | Podicipedidae | Great Grebe | Macá Grande | Mergulhao-grande o chorona | Podiceps major | Native |
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| 3 | Suliformes | Phalacrocoracidae | Neotropic Cormorant | Biguá | Biguá | Nannopterum brasilianum | Native |
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| 4 | Pelecaniformes | Ardeidae | Great Egret | Garza Blanca | Garça-branca-grande | Ardea alba | Native |
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| 5 | Apodiformes | Trochilidae | White-throated Hummingbird | Picaflor Garganta Blanca | Beija-flor-de-papo-branco | Leucochloris albicollis | Native |
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| 6 | Passeriformes | Polioptilidae | Masked Gnatcatcher | Tacuarita Azul | Balança-rabo-de-máscara | Polioptila dumicola | Native |
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| 7 | Thraupidae | Blue-and-yellow Tanager | Naranjero | Sanhaçu-papa-laranja | Rauenia bonariensis | Native |
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| 8 | Rodentia | Caviidae | Greater Capybara | Carpincho | Capivara | Hydrochoerus hydrochaeris | Native |
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