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| Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | Belonging | Records | Conservation status | Notes | ||
| 1 | Rheiformes | Rheidae | Greater Rhea | Ñandú | Ema | Rhea americana | Native | 1 |
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| 2 | Anseriformes | Anatidae | Upland Goose | Cauquén Común | Ganso-de-magalhães | Chloephaga picta | Native | 1 |
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| 3 | Pelecaniformes | Threskiornithidae | Black-faced Ibis | Bandurria Austral | Theristicus melanopis | Native | 1 |
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| 4 | Ardeidae | Whistling Heron | Chiflón | Maria-faceira | Syrigma sibilatrix | Native | 1 |
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| 5 | Passeriformes | Icteridae | Long-tailed Meadowlark | Loica Común | Leistes loyca | Native | 1 |
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