Grey laughingthrush 
(Khướu xám, Garrulax maesi)

The grey laughingthrush (Garrulax maesi) is a species of bird in the family Leiothrichidae.
The bird is found in southern China, far northern Laos and Vietnam.

Leiothrix Leiothrichidae Ancient Greek leios meaning "smooth" and thrix meaning "hair".
Garrulax comes from Latin garrire "to chatter"; Latin garrulus: babbling, chattering; -ax inclining towards.