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Plain antvireo : ウィキペディア英語版 | Plain antvireo
The plain antvireo (''Dysithamnus mentalis'') is a passerine bird species in the antbird family (Thamnophilidae), wherein it belongs to the antshrike subfamily (Thamnophilinae). It is a resident breeder in tropical Central and South America. ==Description== The plain antvireo is typically 11.4 cm long, and weighs 13.5 g. The adult male has a slate grey head and upperparts, blackish cheeks, three narrow white wing bars, pale grey underparts and a white belly. The female has olive brown upperparts, a rufous crown, a white eye-ring, yellowish-buff underparts and weakly buff-barred rufous wings. A white (male) or buff (female) shoulder stripe is only visible when the wing is spread. Immature males are much like the adult male, but have brown edgings to the flight feathers, an olive rump and yellowish underparts. Depending on subspecies, there are large variations in the plumage of both sexes, especially in the colour of the underparts (yellow to white), the darkness of the face, the amount of olive to the upperparts of the male, and the amount of rufous to the upperparts of the female. It has a musical ''buu-bu-bu-bu-u-u-u'' song, and calls include a weak ''naaa'' and a questioning ''bu-u-u-u-u?''
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「Plain antvireo」の詳細全文を読む
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