Family Leaf-warblers (Phylloscopidae)

Least Concern

Sichuan Leaf-warbler (Phylloscopus forresti)


French: Pouillot du Lijiang German: Sichuanlaubsänger Spanish: Mosquitero de Sichuan

Phylloscopus proregulus forresti


, 1921,

pine forests, Lijiang Range, northern Yunnan; altitude 9000–11,000 feet [c. 2740–3350 m]


Until recently considered conspecific with P. chloronotus (itself formerly treated as conspecific with P. proregulus), but differs genetically#R and in its darker, less brownish colour above (1); more sulphur-yellow rump (1); black vs pale base of lower mandible (1); song, with a wider frequency range (2) and slower delivery (2) in both types; and call being an unvarying “tsuist” vs a shorter “psit” (ns[2])#R. Monotypic.

What do (1) and (2) mean? Learn more about the scoring system.

SC China (E Xizang E to S Shaanxi, S to Yunnan and W Sichuan) and perhaps W & N Myanmar#R; non-breeding from SE Xizang and S Sichuan S to E Myanmar, NW Thailand and N Vietnam.

Descriptive notes

9–10 cm. A small, “chunky” leaf-warbler with well-patterned plumage. Adult has well-defined pale buffish or whitish median crownstripe, dark olive-tinged brown-grey lateral... read more


Song of two distinct types, both similar to those of P. chloronotus. Any individual male... read more


Breeds chiefly in spruce–fir (PiceaAbies) forest, mixed with some broadleaf... read more

Food and feeding

Little studied. Diet insects and their larvae. Forages singly; often in mixed-species flocks in non-breeding season. Feeds both high up in... read more


Main season late May–Jun. No information on nest, clutch size and other details, but believed likely to differ little from P.... read more


Altitudinal migrant; makes post-breeding descent to lower elevations. Generally leaves N parts of... read more

Status and conservation

Not globally threatened (Least Concern). Common or locally common. This species’ population size has not been quantified, but its numbers appear to be reasonably stable, with... read more

Recommended citation

del Hoyo, J., Collar, N. & Christie, D.A. (2019). Sichuan Leaf-warbler (Phylloscopus forresti). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 19 August 2019).