A general term for birds in the Casuariidae family of the order Ostrich (or Casuariidae). This family includes one genus and three species: the Great Cassowary, the Papuan Cassowary, and the Lesser Cassowary. The Great Cassowary is sometimes simply called the Casuariidae. It is one of the large ratites. The Great Cassowary can reach a head height of 1.8m and a weight of 85kg, making it the second heaviest living bird after the ostrich. At first glance it resembles an emu, but cassowaries have a horny helmet-like projection on their heads. Their feathers are stiff and hairy like those of an emu, their wings are degenerate, and their flight feathers are only shafts and have no flap. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
ダチョウ目(またはヒクイドリ目)ヒクイドリ科Casuariidaeの鳥の総称。この科にはオオヒクイドリ,パプアヒクイドリ,コヒクイドリの1属3種があり,またオオヒクイドリを単にヒクイドリと呼ぶこともある。大型の走鳥類の一つ。オオヒクイドリは頭高1.8m,体重85kgに達し,現生の鳥類ではダチョウに次いで重い。一見エミューに似ているが,ヒクイドリ類は頭上に角質のかぶと状突起をもっている。羽毛はエミューの羽毛のように固い毛状で,翼は退化し,風切羽も羽軸だけで羽弁がない。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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