Horned guan

Horned guan
At the St. Louis Zoo
Female Oreophasis derbianus call
CITES Appendix I (CITES)
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Galliformes
Family: Cracidae
Subfamily: Oreophasinae
Sclater & Salvin, 1870
Genus: Oreophasis
G.R. Gray, 1844
Species:
O. derbianus
Binomial name
Oreophasis derbianus
Gray, 1844

The horned guan (Oreophasis derbianus) is an endangered species in an ancient group of birds of the family Cracidae, which are related to the Australasian megapodes or mound builders (Megapodiidae). It is found in Mexico, Guatemala, and possibly Honduras.