Oriental Reed Warbler 
(Chích đầu nhọn phương đông, Acrocephalus orientalis)

The Oriental reed warbler (Acrocephalus orientalis) is a passerine bird of eastern Asia belonging to the reed warbler genus Acrocephalus.

The bird breeds in southern Siberia, Mongolia, northern, central and eastern China, Korea and Japan. 
This species winters in north-east India and across South-east Asia to the Philippines and Indonesia, sometimes reaching New Guinea and Australia. 

The family is from the name of the genus Acrocephalus from Ancient Greek akros, "highest", and kephale, "head". 
It is possible that the Naumanns thought akros meant "sharp-pointed".