wagtail

基本解释

To the left and center of the picture can be seen the migratory white wagtail which passes through Taiwan every year.
圖左中間則是今天仍每年過境台灣的候鳥白鹡鸰。
But Gavroche, who was of the wagtail species, and who skipped vivaciously from one gesture to another, had just picked up a stone.
伽弗洛什，象衹動作急捷變換不停的鹡鸰，已從地上拾起一塊石頭。
White Wagtail ( Motacilla alba )
白鶺鸰
Energetics of Growth of the Nestlings of Yellowed-Headed Wagtail
黃頭鹡鸰雛鳥生長能學的研究
Breeding Habit of White Wagtail in Nanchong, Sichuan
四川南充地區白鹡鸰的繁殖習性

A wagtail is a type of small bird that moves its tail quickly up and down as it walks.