Phylloscopus proregulus yunnanensis
La Touche, 1922,
Mengzi, Yunnan Province, China.
Soon after initially described, this taxon was synonymized with P. chloronotus (at the time treated as a race of P. proregulus); but significant differences in morphology, vocalizations, habitat choice and breeding biology now well known, as are sympatric breeding distributions and lack of response to playback of each other’s songs. Present form subsequently described as a new species, P. sichuanensis#R, which was later realized to be a junior synonym of yunnanensis. Monotypic.
C & NE China (E Qinghai, S Gansu, Shaanxi, Shanxi and Hebei S to Sichuan); non-breeding apparently SE Asia.
Food and feeding
Status and conservation
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