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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Conservation status | Notes | ||
| 1 | Rheiformes | Rheidae | Greater Rhea | Ñandú | Ema | Rhea americana | Native |
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| 2 | Tinamiformes | Tinamidae | Red-winged Tinamou | Colorada | Perdiz | Rhynchotus rufescens | Native |
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| 3 | Anseriformes | Anhimidae | Southern Screamer | Chajá | Tachã | Chauna torquata | Native |
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| 4 | Ciconiiformes | Ciconiidae | Wood Stork | Tuyuyú | Cabeça-seca | Mycteria americana | Native |
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| 5 | Accipitriformes | Accipitridae | Snail Kite | Caracolero | Gavião-caramujeiro | Rostrhamus sociabilis | Native |
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| 6 | Passeriformes | Icteridae | Greyish Baywing | Tordo Músico | Asa-de-telha | Agelaioides badius | Native |
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| 7 | Thraupidae | Wedge-tailed Grass Finch | Coludo Grande | Canário-do-campo | Emberizoides herbicola | Native |
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| 8 | Lesser Grass Finch | Coludo Chico | Canário-do-brejo | Emberizoides ypiranganus | Native |
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