World Bird List

Species factsheet
White-browed Tit-warbler (Leptopoecile sophiae)

Order: Leptopoecile sophiae
Family: Bushtits (Aegithalidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
sophiae se Kazakhstan to nw China, nw India and n Pakistan
stoliczkae s Xinjiang, w Qinghai and extreme w Xizang (w China)
major w Xinjiang and n Qinghai (w China)
obscurus c Nepal, s and se Xizang and s and e Qinghai to s Gansu and Sichuan (w China)