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Mountain caracara
The Mountain Caracara (''Phalcoboenus megalopterus'', Spanish: ''corequenque'') is a species of bird of prey in the Falconidae family. It is found in puna and páramo in the Andes, ranging from southern Ecuador, through Peru and Bolivia, to northern Argentina and Chile. It is generally uncommon to fairly common. It resembles the closely related Carunculated Caracara and White-throated Caracara, but unlike those species, its chest is uniform black. Juveniles are far less distinctive than the red-faced pied adults, being overall brown with dull pinkish-grey facial skin.
==Description==
A medium-sized caracara with a faintly blue beak tip turning to bright orange, strongly contrasted by the jet-black feathers of its head, back and chest. Its rump, belly and uppertail and undertail coverts are pure white, changing sharply from black to white between the belly and chest. Its black wings have small white shoulder patches and it has white spots on some of its outer primairies.〔Poulsen, B. (1993) A contact zone between Mountain and Carunculated Caracaras in Ecuador. The Wilson Bulletin, 105:688-691.〕 In the 1960s, 17 individual birds were caught and measured and it was noted that the species wing length could range from 358 to 403 mm, giving them a medium-sized wing for a caracara, but a comparatively short tail.〔Vuilleumier, F. (1970) Generic relations and speciation patterns in the Caracaras (Aves: Falconidae). Breviora, 355:1-29.〕 Despite an important food source being carcasses, the Mountain Caracara's head and throat remain feathered (unlike some vultures), and only its lores are kept naked. Its legs are yellow and the males and females look similar, while the juveniles are brown.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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