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The white-bearded manakin (''Manacus manacus'') is a small passerine bird which breeds in tropical South America. It is found from Colombia, Venezuela and Trinidad south to Bolivia and northern Argentina. This manakin is a fairly common bird of forests, second growth and plantations. The female builds a shallow cup nest low in a tree; two brown-mottled white eggs are laid, and incubated entirely by the female for about 18–19 days, with a further 13–15 days to fledging. The young are fed mainly on regurgitated fruit with some insects. Like other manakins, white-bearded manakin is a compact, brightly coloured forest bird, typically long and weighing . The adult male has a black crown, upper back wings and tail, and the plumage is otherwise white. He has orange legs. The female and young males are olive-green and resemble female golden-headed manakins, but they have orange legs. The race endemic to Trinidad, ''M. m. trinitatis'' is larger than mainland birds, and the female has yellower underparts. The male white-bearded manakin has a fascinating breeding display at a communal lek. Each male clears a patch of forest floor to bare earth, and perches on a bare stick. The display consists of rapid leaps between sticks and the ground, accompanied by a loud wing snap, the whirring of the wings, and a ''chee-poo'' call. Groups of up to 70 birds may perform together, the largest leks being in Trinidad. Apart from the buzzing display song, white-bearded manakin has a number of other calls, including a trilled musical ''peeerr''. These manakins eat fruit and some insects. ==Range: Amazon Basin, etc== In South America, two thirds of white-bearded manakin's range is in the combined Amazon Basin, the Guianas, and the Orinoco River drainage of Venezuela; also eastern Colombia. Three disjunct populations occur: Pacific coastal Ecuador, with southwestern Colombia; coastal and inland western Venezuela with northwestern Colombia; and the largest, southeastern Brazil, with inland regions bordering Paraguay in the south, and from Paraná state to coastal Pernambuco in the northeast. Only one area of the Amazon Basin does not have the species, the 2200 km Purus River region in southwestern Amazonas state. 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「White-bearded manakin」の詳細全文を読む スポンサード リンク
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