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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 Keel-billed toucan ： ウィキペディア英語版 Keel-billed toucan The keel-billed toucan (''Ramphastos sulfuratus''), also known as sulfur-breasted toucan or rainbow-billed toucan, is a colorful Latin American member of the toucan family. It is the national bird of Belize.〔 == Description == Including its bill, the keel-billed toucan ranges in length from around .〔 Their large and colorful bill averages around , about one-third of its length. It typically weighs about .〔 While the bill seems large and cumbersome, it is in fact a spongy, hollow bone covered in keratin, a very light and hard protein. The plumage of the keel-billed toucan is mainly black with a yellow neck and chest. Molting occurs once per year.〔 It has blue feet and red feathers at the tip of its tail. The bill is mainly green with a red tip and orange sides. Keel-billed toucans have zygodactyl feet (or feet with toes facing in different directions) – two toes face forward and two face back. Because toucans spend a large portion of time in the trees, this helps the birds to stay on the branches of the trees and jump from one branch to another. 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「Keel-billed toucan」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.