This leaf-warbler moves seasonally between eastern Russia and Japan and parts of East and Southeast Asia. Its habitats vary with season, from high-elevation shrubland to lowland forest.
A Birds of the World profile image shows olive-brown upperparts, pale underparts, a fine pale eyebrow, and a slender bill.
BirdLife identifies boreal shrubland at higher elevations as a major seasonal habitat and also lists lowland forest, plantations, and gardens among habitats used at other times.
An extinction-risk assessment has not been added yet.