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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 | Anseriformes | Anhimidae | Southern Screamer | Chajá | Tachã | Chauna torquata | Native |
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| 3 | Anatidae | White-faced Whistling Duck | Sirirí Pampa | Irerê | Dendrocygna viduata | Native |
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| 4 | Brazilian Teal | Pato Cutirí | Marreca-ananaí | Amazonetta brasiliensis | Native |
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| 5 | Gruiformes | Rallidae | Grey-cowled Wood Rail | Chiricote | Saracura-três-potes | Aramides cajaneus | Native |
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| 6 | Charadriiformes | Jacanidae | Wattled Jacana | Jacana | Jaçanã | Jacana jacana | Native |
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| 7 | Pelecaniformes | Ardeidae | Snowy Egret | Garcita Blanca | Garça-branca-pequena | Egretta thula | Native |
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| 8 | Passeriformes | Tyrannidae | Black-backed Water Tyrant | Viudita Blanca | Lavadeira-de-cara-branca | Fluvicola albiventer | Native |
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| 9 | Icteridae | White-browed Meadowlark | Pecho Colorado | Polícia-inglesa-do-sul | Leistes superciliaris | Native |
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| 10 | Carnivora | Procyonidae | Crab-eating Raccoon | Aguará Popé | Procyon cancrivorus | Native |
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