Real Dictionary

curassow in American English
any of several dark, crested, gallinaceous game birds (family Cracidae, esp. genera Crax and Mitu) of South and Central America, which usually nest in trees
noun: any of several large, arboreal, gallinaceous birds of the family Cracidae, of South and Central America

curassow in British English
noun: any gallinaceous ground-nesting bird of the family Cracidae, of S North, Central, and South America. Curassows have long legs and tails and, typically, a distinctive crest of curled feathers