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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 | Spotted Nothura | Inambú Común | Codorna-amarela | Nothura maculosa | Native |
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| 3 | Anseriformes | Anhimidae | Southern Screamer | Chajá | Tachã | Chauna torquata | Native |
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| 4 | Anatidae | Coscoroba Swan | Coscoroba | Capororoca | Coscoroba coscoroba | Native |
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| 5 | Ciconiiformes | Ciconiidae | Maguari Stork | Cigüeña Americana | Maguari | Ciconia maguari | Native |
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| 6 | Pelecaniformes | Ardeidae | Whistling Heron | Chiflón | Maria-faceira | Syrigma sibilatrix | Native |
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| 7 | Great Egret | Garza Blanca | Garça-branca-grande | Ardea alba | Native |
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| 8 | Strigiformes | Strigidae | Short-eared Owl | Lechuzón Campestre | Mocho-dos-banhados | Asio flammeus | Native | |||
| 9 | Passeriformes | Icteridae | Long-tailed Meadowlark | Loica Común | Leistes loyca | Native |
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