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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 | Cuculiformes | Cuculidae | Guira Cuckoo | Pirincho | Anu-branco | Guira guira | Native |
| ||
| 3 | Pelecaniformes | Threskiornithidae | White-faced Ibis | Cuervillo de Cañada | Caraúna | Plegadis chihi | Native |
| ||
| 4 | Ardeidae | Western Cattle Egret | Garcita Bueyera | Garça-vaqueira | Ardea ibis | Native |
| |||
| 5 | Passeriformes | Tyrannidae | Tropical Kingbird | Suirirí Real | Suiriri | Tyrannus melancholicus | Native |
| ||
| 6 | Passerellidae | Rufous-collared Sparrow | Chingolo | Tico-tico | Zonotrichia capensis | Native |
| |||
| 7 | Thraupidae | Grassland Yellow Finch | Misto | Tipio | Sicalis luteola | Native |
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