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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 Northern bobwhite ： ウィキペディア英語版 Northern bobwhite The northern bobwhite, Virginia quail or (in its home range) bobwhite quail (''Colinus virginianus'') is a ground-dwelling bird native to the United States, Mexico, and the Caribbean. It is a member of the group of species known as New World quails (Odontophoridae). They were initially placed with the Old World quails in the pheasant family (Phasianidae), but are not particularly closely related. The name "bobwhite" derives from its characteristic whistling call. Despite its secretive nature, the northern bobwhite is one of the most familiar quails in eastern North America because it is frequently the only quail in its range. There are 21 subspecies of northern bobwhite, many of which are hunted extensively as game birds. One subspecies, the masked bobwhite (''Colinus virginianus ridgwayi''), is listed as endangered with wild populations located in the northern Mexican state of Sonora and a reintroduced population in Buenos Aires National Wildlife Refuge in southern Arizona. ==Description== This is a moderately-sized quail and is the only small galliform native to eastern North America. The bobwhite can range from in length with a wingspan. As indicated by body mass, weights increase in birds found further north, as corresponds to Bergmann's rule. In Mexico, northern bobwhites weigh from whereas in the north they average and large males can attain as much as .〔''Pheasants, Partridges, and Grouse : A Guide to the Pheasants, Partridges, Quails, Grouse, Guineafowl, Buttonquails, and Sandgrouse of the World (Princeton Field Guides)'' by Tami Davis Biddle. Princeton University Press (2002). ISBN 978-0691089089.〕〔Nelson, A. L. and A. C. Martin. 1953. ''Gamebird weights''. J. Wildl. Manage. 17:36-42.〕 Among standard measurements, the wing chord is , the tail is the culmen is and the tarsus is .〔Aldrich, J. W. 1946. ''The United States races of the bob-white''. The Auk 63:493-508.〕 It has the typical chunky, rounded shape of a quail. The bill is short, curved and brown-black in color. This species is sexually dimorphic. Males have a white throat and brow stripe bordered by black. The overall rufous plumage has gray mottling on the wings, white scalloped stripes on the flanks, and black scallops on the whitish underparts. The tail is gray. Females are similar but are duller overall and have a buff throat and brow without the black border. Both sexes have pale legs and feet. 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「Northern bobwhite」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.