Daurian Redstart 
(Đuôi đỏ núi đá trán xám, Phoenicurus auroreus)

The Daurian redstart (Phoenicurus auroreus) is a small passerine bird of the flycatcher family Muscicapidae.
The bird is found in Manchuria, southeastern Russia, northeastern Mongolia, central China and Korea. 
This species winters in Korea, Japan, southeast coastal China and Taiwan, in northeast India and parts of Southeast Asia.

Redstart means a red start or a red tail (start means an old name for tail English). The species is of the genus Phoenicurus.
The name Phoenicurus is from Ancient Greek φοινιξ (phoinix), "(Phoenician) crimson/purple", and ουροσ (-ouros) -"tailed".
aurorea, auroreus Latin eastern (Latin aurora dawn).