Ostrich (Ostrich) - Ostrich (English spelling)

Japanese: ダチョウ(駝鳥) - ダチョウ（英語表記）ostrich

Birds of the order Struthioniformes, family Struthioniidae (illustration). This family consists of only one species, the ostrich. It is about 1.8 m long. It is the largest living bird species, with large males reaching a head height of 2.5 m and weighing up to 150 kg. Males have black bodies and white ornamental flight feathers and tail feathers. The head, neck, armpits, and thighs are featherless, exposing exposed pink skin. Females and young birds are smaller than males, and their body feathers, flight feathers, and tail feathers are all gray-brown. Their wings have degenerated, making them completely unable to fly, and they live entirely on the ground.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

ダチョウ目ダチョウ科の鳥（イラスト）。この科はダチョウ1種だけからなる。全長約1.8m。現生の鳥類では最大種で，大きな雄では頭高2.5m，体重150kgに及ぶ。雄は体が黒く，飾羽状になった風切羽と尾羽は白い。頭頸（とうけい）部，わき，ももは羽毛がなく，ピンク色の皮膚が裸出している。雌と幼鳥は雄より小さく，体羽，風切羽，尾羽がみな灰褐色。翼は退化し，飛ぶことはまったくできず，完全に地上で生活している。

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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