Quesal \Que*sal"\, n. (Zo["o]l.) The long-tailed, or resplendent, trogon (Pharomachus mocinno, formerly Trogon resplendens), native of Southern Mexico and Central America. Called also quetzal, and golden trogon.

Note: The male is remarkable for the brilliant metallic green and gold colors of his plumage, and for his extremely long plumes, which often exceed three feet in length.

Source: Webster's Revised Unabridged Dictionary (1913)