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Andean crested duck : ウィキペディア英語版 | Andean crested duck
The Andean crested duck (''Lophonetta specularioides alticola'') is one of two subspecies of the crested duck. It is much rarer than its sibling subspecies, the Patagonian crested duck. ==Description== The Andean crested duck is a medium-sized duck with a length of about 600 mm, a dark nuchal crest and a long, pointed black tail. Its colouring is predominantly grey and brown. The forecrown, sides of the head and neck are pale, while the centre of the crown, the crest and the area behind the eyes are dark brown to black. Much of the body plumage is light brown mottled with darker markings. The wings are dark brown to black. The irides are yellow and the bill and feet dark grey. It is very similar to the nominate subspecies, differing in being slightly larger, browner and less mottled, with a darker purple speculum.〔Blake (1977).〕
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「Andean crested duck」の詳細全文を読む
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