Geographical variation clinal, with slight increase in size and underpart pallor from E to W. Proposed races intermedia (from NE Myanmar and C & S China S to N Laos and S Vietnam) and pallida (highlands of Fujian, in SE China) appear to represent middle stage and end, respectively, of this cline. Treated as monotypic.
From N India (E from Kumaon, in Uttarakhand) E to all NE hill states and N & W Myanmar, adjacent SE Xizang (Zayu), C, S & SE China (N & NE Sichuan and S Shaanxi, E to S Zhejiang, S to Yunnan, Guangxi and Guangdong), N & C Laos, Vietnam (Tonkin, N, C & S Annam) and extreme E Cambodia.
Food and feeding
Status and conservation
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