Chinese Bush-Warbler 
(Chích ngực hung, Locustella tacsanowskia)

The Chinese bush warbler (Locustella tacsanowskia) is an Old World warbler in the family Locustellidae.
The bird breeds in the East Palearctic (East Siberia to Tibet and South China) and winters to Northeast India, Yunnan and Southeast Asia.

The genus name Locustella is from Latin and is a diminutive of locusta, "grasshopper".