Horned Guan. Oreophase cornu. Hornguan. Oreophasis derbianus
This species is Endangered because remaining populations are very small, severely fragmented and, given continuing threats, presumably declining. Further surveys may find this species to be more widespread than recent records suggest, but effective protection of known sites is required if its conservation status is genuinely to improve. Family/Sub-family Cracidae Species name author Gray, 1844 Taxonomic source(s) AOU checklist (1998 + supplements), Sibley and Monroe (1990, 1993), Stotz et al. (1996) Identification 84 cm. Unmistakable, large, black-and-white cracid. Glossy black above with bluish sheen. Whitish flecked black on neck, breast and upper belly with brown flanks and lower belly. Black tail with white band near base. Unusual red horn of bare skin on top of head and small red dewlap. White iris, yellow bill and red legs. Juvenile has reduced horn (develops through first year), and brown tail and wings. Voice Deep, low booming uhmm uh'mmm uh'mmm uh'mmm. Oreophasis derbianus occurs in the Sierra Madre de Chiapas, Mexico, and throughout south Guatemala. In Mexico, there are recent records from El Triunfo, Cerro Venado, Cerro Toquain Grande and Volcán Tacaná, and birds have been purportedly collected, and a tail feather found, in the Chimalapas area of Oaxaca1,7. In Guatemala, there are recent records from: Fuentes Georgina on Volcán Zunil; Volcáns Tolimán, Atitlán and San Pedro; Volcáns Acatenango and de Fuego; and Sierra de las Minas. There are unconfirmed reports from Cerro Volcán Pacayita, Honduras. Numbers decreased severely during the 20th century and nowhere is it better than uncommon. The population was estimated at fewer than 1,000 individuals in the late 1970s, but densities are estimated at individuals/km2 in El Triunfo2, and some populations are remote and relatively secure.
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