Water Pipit 
(Chim manh Nhật Bản, Anthus spinoletta)

The water pipit (Anthus spinoletta) is a small passerine bird which breeds in the mountains of Southern Europe and the Palearctic eastwards to China.

The Wagtails, the pipits and longclaws form the family Motacillidae (Họ Chìa vôi).
Passeriformes, Passerina, passerina: Latin passerinus sparrow-like, (i.e. sparrow-sized) (passer sparrow).
Motacillidae, Motacilla: From Latin motacilla (“wagtail”).
The genus name Anthus is the Latin name for a small bird of grasslands.
The specific spinoletta is a local dialect word for a pipit from the Florence area of Italy.