Hitherto treated as conspecific with G. cineraceus, but differs in its dull grey-brown vs black crown (3); warmer, darker upperparts (1); dull chestnut supercilium and ear-coverts with no postocular black streak (3); and pale vinous vs buffy-whitish throat, submoustachial area and breast (ns). Width of zone of hybridization with strenuus unknown (score at least 1), and taxonomic status of SC & SW Sichuan populations (and perhaps elsewhere) awaiting clarification (presumed here to belong with present species). Monotypic.
C & E China from S Gansu and S Shaanxi E to S Jiangsu, W Shanghai, Fujian and N Guangdong, and S to S & SE Yunnan, Guizhou and Guangxi; also recorded in adjacent N Vietnam (Trung Khanh district#R).
Introduced in Japan (Shikoku I#R).
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!