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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 | Ringed Teal | Pato de Collar | Marreca-de-coleira | Callonetta leucophrys | Native | 1 |
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| 3 | Charadriiformes | Recurvirostridae | Black-necked Stilt | Tero Real | Himantopus mexicanus | Native | 1 | ||||
| 4 | Scolopacidae | Wilson´s Phalarope | Falaropo Común | Pisa-n´água | Phalaropus tricolor | Native | 1 |
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| 5 | Lesser Yellowlegs | Pitotoy Chico | Maçarico-de-perna-amarela | Tringa flavipes | Native | 1 |
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| 6 | Cariamiformes | Cariamidae | Black-legged Seriema | Chuña Patas Negras | Chunga burmeisteri | Native | 1 |
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| 7 | Passeriformes | Tyrannidae | Black-backed Water Tyrant | Viudita Blanca | Lavadeira-de-cara-branca | Fluvicola albiventer | Native | 1 |
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| 8 | White Monjita | Monjita Blanca | Noivinha | Xolmis irupero | Native | 1 |
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