
Photo: (c) harum.koh, some rights reserved (CC BY-SA) · CC BY-SA 4.0 (May be cropped or resized)
Phoenicurus auroreus
Range
P. a. auroreus winters in Korea, Japan, south-east coastal China and Taiwan; P. a. leucopterus in north-east India and parts of Southeast Asia
Size
14–15cm
Weight
11–20g
The Daurian redstart is a small passerine from temperate Asia, 14 to 15cm long and weighing 11 to 20g, and strongly sexually dimorphic. Breeding males have a grey crown and nape, a black face and chin, brownish mantle and wings and a large white wing patch, with orange chest, lower back and rump and a black tail with orange sides. Females are warm brown above and paler below, with an orange rump and tail sides and a white wing patch (Wikipedia, general species account).
It is migratory: P. a. auroreus winters in Korea, Japan, south-east coastal China and Taiwan, and P. a. leucopterus in north-east India and parts of Southeast Asia. It breeds in the summer months. The source read does not name Bhutan, and gives no diet information.