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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 waterthrush ： ウィキペディア英語版 Northern waterthrush The northern waterthrush (''Parkesia noveboracensis''〔) is one of the larger New World warblers. It breeds in the northern part of North America in Canada and the northern United States including Alaska. This bird is migratory, wintering in Central America, the West Indies and Florida, as well as in Venezuela, Colombia, and Ecuador. It is a very rare vagrant to other South American countries and to western Europe. ==Description== The northern waterthrush is a large New World warbler (and not a thrush, despite the name). It has a length of , wingspan of and weighs between Among standard measurements, the wing chord is , the tail is , the bill is and the tarsus is . On the head, the crown is brown with a white supercilium. The bill is pointed and dark. The throat is lightly streaked brown to black with heavier streaking continuing onto the breast and flanks. The back is evenly brown. Sexes are morphologically similar. Young birds have buff, rather than white underparts. The only species bird watchers confuse with the northern waterthrush is the closely related Louisiana waterthrush (''Parkesia motacilla''〔), which has buff flanks, a buff undertail, and bright pink legs. The Louisiana waterthrush also has a whiter throat with fewer streaks. Both waterthrush species walk rather than hop, and seem to teeter, since they bob their rear ends as they move along. 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 waterthrush」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.