Real Dictionary

quetzal in American English
a crested trogon bird (Pharomachrus mocinno) of Central America, usually brilliant green above and red below, with long, streaming tail feathers in the male
noun: any of several large Central and South American trogons of the genus Pharomachrus, having golden-green and scarlet plumage, esp. P. mocino ( resplendent quetzal), the national bird of Guatemala: rare and possibly endangered

quetzal in British English
noun: a crested bird, Pharomachrus mocinno, of Central and N South America, which has a brilliant green, red, and white plumage and, in the male, long tail feathers: family Trogonidae, order Trogoniformes (trogons)