whooper
/ˈhuːpə(r)/(亦作 whooper swan)
noun
1- a large migratory swan with a black and yellow bill and a loud trumpeting call, breeding in northern Eurasia and Greenland大天鹅。
1.1
- Cygnus cygnus, family Anatidae.拉丁名Cygnus cygnus,鸭科。