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The chestnut-mandibled toucan, or Swainson’s toucan (''Ramphastos ambiguus swainsonii'') is a near-passerine bird which breeds from eastern Honduras to northern Colombia to western Ecuador. This subspecies is replaced from southern Colombia to eastern Peru by the nominate subspecies black-mandibled toucan, ''R. ambiguus ambiguus''. The SACC and NACC of the AOU have recently indicated (in 2010) that these birds should be classified as conspecific. The scientific and alternative English names commemorate the English ornithologist and artist William Swainson. ==Description== Like other toucans, the chestnut-mandibled is brightly marked and has a large bill. The male is 56 cm long, while the smaller female is typically 52 cm long. Weight ranges from 599 to 746 grams (1.3-1.6 lbs).〔http://www.nashvillezoo.org/piciformes/ramphastidae.htm〕 The sexes are alike in appearance, mainly black with maroon hints to the head, upper back and lower breast. The face and upper breast are bright yellow, with narrow white and broader red lines forming a lower border. The upper tail is white and the lower abdomen is red. The legs are blue. The body plumage is similar to that of the smaller keel-billed toucan, but the bill pattern is quite different, being diagonally divided into bright yellow and maroon. Juvenile birds are sooty-black, and have duller plumage, particularly with respect to the bib, red border, and lower mandible. They are fed by the parents for several weeks after leaving the nest. The call of the chestnut-mandibled toucan is a yelping ''yo-YIP, a-yip, a-yip'', or a ''Dios te dé, Dios te dé'' (Spanish for "God give you..."). It is given to maintain contact as the flock travels in "follow-my-leader" style through the trees, but also in chorus at the evening roosts. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chestnut-mandibled toucan」の詳細全文を読む スポンサード リンク
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