Chachalacas, Guans and Curassows (Cracidae)

West Mexican Chachalaca (Ortalis poliocephala) - HBW 2, p. 344

French: Ortalide de Wagler German: Graubrustguan Spanish: Chachalaca Pechigrís

Taxonomy: Penelope poliocephala Wagler, 1830, Mexico.
Forms superspecies with O. wagleri, which was formerly considered a race of present species; a few cases of hybridization in NW Jalisco were interpreted as evidence of a narrow zone of intergradation in W Jalisco and W Colima, where intermediates were even considered a different subspecies, lajuelae; cases of hybridization may have resulted from escapes of imported birds of present species (see page 312). Formerly considered a race of O. vetula. In S, range meets those of O. leucogastra and O. vetula, perhaps with slight overlap; no cases of hybridization k.. View all taxonomy...

Taxonomy: Penelope poliocephala Wagler, 1830, Mexico.
Forms superspecies with O. wagleri, which was formerly considered a race of present species; a few cases of hybridization in NW Jalisco were interpreted as evidence of a narrow zone of intergradation in W Jalisco and W Colima, where intermediates were even considered a different subspecies, lajuelae; cases of hybridization may have resulted from escapes of imported birds of present species (see page 312). Formerly considered a race of O. vetula. In S, range meets those of O. leucogastra and O. vetula, perhaps with slight overlap; no cases of hybridization known. Monotypic.

Distribution: W Mexico, from S & NE Jalisco and Colima S to CS Chiapas.