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The Bornean forktail (''Enicurus borneensis'') is a small, black and white bird, with a long and deeply forked tail, in the Old World flycatcher family. It is endemic to the Southeast Asian island of Borneo, where it occupies streamside habitats in montane primary forest. ==Taxonomy== It is closely related to the very similar white-crowned forktail (''Enicurus leschenaulti'') of which it is sometimes considered a subspecies, and from which it was split because of: * a recognizably different type of mitochondrial DNA * the reduced extent of the white forehead shield, which does not cover the crown * its larger size and longer tail with four, rather than five, white tail patches * different calls * different habitat, with the Bornean forktail replacing the lowland dwelling white-crowned forktail in the mountains and in submontane areas. 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「Bornean forktail」の詳細全文を読む スポンサード リンク
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