Chachalacas (genus Ortails) are gamebirds found in 'New World' tropical forests. Chachalacas are in the same order as guans and curassow (Cracidae), but are smaller. Most species travel in groups, and are quite loud.
Chaco Chachalaca (Ortalis canicollis pantanalensis)
Pousada Rio Claro, Pantanal, Brazil