The White Woodpecker (Melanerpes candidus) is a species of woodpecker (Family Picidae) found in South America. This woodpecker is a native of the grasslands of Brazil, Bolivia, Paraguay, Uruguay and Argentina.
Barred antshrikes are found in most of the Neotropics from Mexico through Central America, Trinidad and Tobago, and a large part of South America E of the Andes as far S as N Argentina, Bolivia and Paraguay. (Owen Deutsch)
The southern screamer (Chauna torquata), also known as the crested screamer, belongs to the order Anseriformes. It is found in southeastern Peru, northern Bolivia, Paraguay, southern Brazil, Uruguay and northern Argentina. Its diet consists of plants stems, seeds, leaves, and, rarely, small animals. - Wikipedia, the free encyclopedia
The Spot-backed Puffbird (Nystalus maculatus) is a species of bird in the Bucconidae family, the puffbirds. It is found in eastern Brazil, eastern Bolivia, Paraguay and northern Argentina. It is found in various open to semi-open habitats, ranging from arid Caatinga to semi-humid woodland along the lower Amazon River.