wagtail
/ˈwægteɪl/noun
1- a slender Eurasian and African songbird with a long tail that is frequently wagged up and down, typically living by water鹡鸰。参见WILIY WAGTAIL.
1.1
- Family Motacillidae: two genera, in particular Motacilla, and several species.鹡鸰科：2属, 尤指鹡鸰属, 数种。