Wiktionary
white-rumped hawk
n. ''Buteo leucorrhous'', a species of bird of prey in the Accipitridae family found in South America.
Wikipedia
White-rumped hawk
The white-rumped hawk (Parabuteo leucorrhous) is a species of bird of prey in the Accipitridae family. It is found in Argentina, Bolivia, Brazil, Colombia, Ecuador, Paraguay, Peru, and Venezuela. Its natural habitat is subtropical or tropical moist montane forests.