wheatear

名词 wheatear:

1. small songbird of northern America and Eurasia having a distinctive white rump

wheat.ear

n.（名词）
A small thrush(Oenanthe oenanthe) having a gray back, buff breast, and white rump, found in open areas of most northern regions.
穗：一种小歌鸟（穗） 有灰色的背，胸部呈暗黄色，腰部白色，在大多数北部地区空旷开阔地带可以找到

来源：
Back-formation from earlier wheatears [taken as pl.]
源自 较早期 wheatears的逆构词 [被当作复数形式]
probably by folk etymology from white
可能源自 white的民间词源
arse
arse