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| Class | Order | Family | English Common Name | Spanish Common Name | Portuguese Common Name | Scientific Name | |
| 1 | Aves | Anseriformes | Anhimidae | Southern Screamer | Chajá | Tachã | Chauna torquata |
| 2 | Aves | Podicipediformes | Podicipedidae | Great Grebe | Macá Grande | Mergulhao-grande o chorona | Podiceps major |
| 3 | Aves | Pelecaniformes | Ardeidae | Striated Heron | Garcita Azulada | Socozinho | Butorides striata |
| 4 | Aves | Piciformes | Picidae | Checkered Woodpecker | Carpintero Bataraz Chico | Pica-pau-chorão | Veniliornis mixtus |