marsh harrier
noun
1- a dark-backed Old World harrier that frequents marshes and reed beds泽鹞。
1.1
- Genus Circus, family Accipitridae: several species, including the western marsh harrier (C. aeruginosus) of Eurasia and North Africa, the female of which has a cream-coloured crown.鹞属, 鹰科：数种, 包括欧亚大陆和北非的白头鹞（拉丁名C. aeruginosus）, 其雌性长有米色的顶冠。