Turdus kessleri
Habitat
Alpine scrub on rocky sites, 3,600–4,500 m; descends to 2,100 m in winter
Range
Central China (Gansu, Qinghai, Sichuan, eastern Tibet, north-western Yunnan); scarce winter visitor to Bhutan, Arunachal Pradesh, Sikkim and eastern Nepal
Size
28 cm
The white-backed or Kessler's thrush (Turdus kessleri) is primarily resident or a short-distance altitudinal migrant, found in central China in Gansu, Qinghai, Sichuan, eastern Tibet and north-western Yunnan, and a scarce winter visitor in Bhutan, Arunachal Pradesh, Sikkim and eastern Nepal. It breeds in alpine scrub on rocky sites at 3,600–4,500 m and descends to about 2,100 m, rarely 1,500 m, in winter. (Wikipedia, general species account)
It is a large thrush, 28 cm long, the same size as a mistle thrush. The male has a black head, wings and tail and a pink body, darker pink below and pale pink to nearly white on the mantle. (Wikipedia, general species account)