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Emu（鸸鸱）
The flightless emu is widespread in Australia’s open country. The largest bird except for the ostrich, the adult emu stands about m high and weighs about 55 kg. Emus run at speeds of up to 50 km／h, defend themselves by kicking, and swim well. The hairlike plumage of both sexes is brownish gray. The slightly smaller male incubates approximately 8 to 10 dark green eggs for about 60 days, each egg weighing about . The emu has served as food, and it appears on the Australian coat of arms. Farmers often consider it a pest, however, because it may break fences and feed on crops （while also eating many insects）. Smaller species were exterminated by settlers on nearby islands, but the Australian emus survived even a brief “emu war” in 1932, when there was an attempt to destroy them by using machine guns.