Yellow-vented warbler 
(Phylloscopus cantator, Chích đít vàng)

The yellow-vented warbler (Phylloscopus cantator) is a species of leaf warbler (family Phylloscopidae). 
The bird is found in Bangladesh, Bhutan, China, India, Laos, Myanmar, Nepal, and Thailand. 

Leaf warblers are small insectivorous passerine birds belonging to the genus Phylloscopus. 
Leaf warblers were formerly included in the Old World warbler family but are now considered to belong to the family Phylloscopidae, introduced in 2006.
The name Phylloscopus combines the Ancient Greek phullon meaning "leaf" and skopos meaning "seeker" (from skopeo, "to watch").
cantator, cantatoris Latin cantator singer (cantare to sing).