Breeds south-central China (eastern Xizang east to southern Shaanxi, south to Yunnan and western Sichuan). Non-breeding also eastern Myanmar, north-western Thailand and northern Vietnam.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is unknown (2010).
Sichuan Leaf Warbler (Phylloscopus forresti) [XC556022]
by id from Bei Mu-Ping area, Wolong-Balang Shan highway, Sichuan, China (song)
Sichuan Leaf Warbler (Phylloscopus forresti) [XC491413]
by Zhou Zhe \u5468\u54f2 from Bei Zha Forest Reserve, Nangqian, Qinghai, China (call)
Subspecies
No subspecies.
Phylloscopus chloronotus (Sibley and Monroe 1990, 1993) has been split into Lemon-rumped Leaf-Warbler (Phylloscopus chloronotus) and Sichuan Leaf-Warbler (Phylloscopus forresti) following Martens (2004).
Considered by some authors to be a subspecies of Lemon-rumped Leaf-Warbler (Phylloscopus chloronotus).