bustard
/ˈbʌstəd/noun
1- a large, heavily built, swift-running bird, found in open country in the Old World. The males of most bustards have a spectacular courtship display.鸨（欧亚大鸟, 雄鸟求欢时作壮观的表演）
1.1
- Family Otididae: several genera and species, including the great bustard (Otis tgarda), which is the heaviest flying land bird.鸨科：数属及数种, 包括大鸨（拉丁名 Otis tgarda）, 是最重的陆地飞禽。
词源
late 15th cent.: perhaps and Anglo-Norman French blend of Old French bistgarde and oustarde, both from Latin avis tarde 'slow bird'： the name is unexplained， as the bustards are fast runners.