The Resplendent Quetzal, (Pharomachrus mocinno) is a colorful bird of the trogon family found in tropical areas of southern Mexico and of Central America.
An image of a Quetzal is on the flag and national seal of Guatemala.
One Guatemalan legend claims that the quetzal used to sing beautifully before the Spanish conquest[?], but has been silent ever since--but will sing once again when the land is truly free.