Description wikipedia

The West Mexican chachalaca (Ortalis poliocephala) is a species of bird in the family Cracidae, the chachalacas, guans, and curassows. It is endemic to Mexico. The West Mexican chachalaca is 58.5 to 68.5 cm (1.9 to 2.2 ft) long. One male weighed 760 g (1.7 lb). Its crown and nape are dull brownish gray and the rest of the upperparts pale brownish olive. The tail is slightly grayer and the feathers have broad buff tips. The breast is grayish olive and the belly whitish with a buff wash. The hazel eye is surrounded by bare carmine skin. The West Mexican chachalaca is found in a swath of southwestern Mexico between northern Jalisco and southwestern Chiapas and inland as far as southwestern Puebla. It primarily inhabits mature deciduous forest, thorn scrub, and secondary forest. Locally it inhabits pine-oak forest and sometimes is found in mangroves and palm plantations. In elevation it ranges from sea level to 2,400 m (7,900 ft).