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Leptopoecile sophiae
Habitat
Dry mountainous shrubland at 2,000–5,000m; dome-shaped nests in shrubs about 0.9m off the ground
Range
Tian Shan, central China and the Himalayas, where it is mainly found in winter
Clutch size
4–6 whitish eggs with red-brown spots, up to 9
Size
8.5–10cm
Weight
6–8g
The white-browed tit-warbler is a small bird, 8.5 to 10cm long and weighing 6 to 8g. It is resident in the Tian Shan and central China as well as in the Himalayas, where it is mainly found in winter. Males are vibrant, with blue-mauve underparts, a light brown crown, a white supercilium and a violet-blue rump; females are duller with paler underparts (Wikipedia, general species account).
It prefers dry mountainous shrubland between 2,000 and 5,000m. Pairs are monogamous and both sexes build the dome-shaped nest in a shrub, laying four to six whitish eggs with red-brown spots, sometimes up to nine. In a Tibetan study it began breeding before any other local songbird, generally in early April and running through July, and groups of 25 or more form at the end of the season.