Spix's Guan (Penelope jacquacu) is a species of bird in the Cracidae family. It is found in Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, and Venezuela. Its natural habitat is subtropical or tropical moist lowland forests. Its estimated global range is approximately 5,000,000 km² and is common in at least parts of this range. It is therefore considered a least concern species by the IUCN. The chachalacas, guans and curassows are birds in the family Cracidae. These are species of tropical and subtropical Central and South America. One species, the Plain Chachalaca, just reaches southernmost Texas in the USA. Two species, the Trinidad Piping Guan and the Rufous-vented Chachalaca occur on the islands of Trinidad and Tobago respectively.