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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Long-tailed widowbird ： ウィキペディア英語版 Long-tailed widowbird The long-tailed widowbird (''Euplectes progne''), also known as the “Sakabula,” is a species of bird in the Ploceidae family.〔Mackworth-Praed, C.W., and C.H. Grant. (1960). ''Birds of Eastern and North Eastern Africa''. Longmans, Green and Co LTD; London〕 The species are found in Angola, Botswana, the Democratic Republic of the Congo, Kenya, Lesotho, South Africa, Swaziland, Zambia, and southern Zaire.〔Hall, B. P. and R. E. Moreau. (1970). An atlas of speciation in African passerine birds. British Museum of Natural History, London.〕 The long-tailed widowbird is a medium-sized bird and one of the most common in the territories it inhabits.〔Andersson, M. (1982). "Female choice selects for extreme tail length in a widowbird." ''Nature'', 299: 818-820.〕 Adult breeding males are almost entirely black with orange and white shoulders (epaulets), long, wide tails, and a bluish white bill.〔 Females are rather inconspicuous, their feathers streaked tawny and black with pale patches on the chest, breast and back, narrow tail feathers, and horn-color bills.〔 When flying, male long-tailed widowbirds are readily visible due to their extremely long tails. Between six and eight of their twelve tail feathers are approximately half a metre (approximately 20 inches) long. The tail during flight display is expanded vertically into a deep, long keel below the male as he flies with slow wingbeats 0.5 to 2 metres (20 to 78 inches) above his territory. 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「Long-tailed widowbird」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.