Typical brown bush-warbler; forages quietly deep in dense undergrowth. Prefers wet areas such as reedbeds, riparian shrubbery, and marshy groves. Dirt-brown above with a white throat and brown-washed underparts. Some adults have light streaking on the throat, but streaks are thinner and less extensive than those of Baikal Bush Warbler. Song is insect-like and similar to that of Baikal Bush Warbler, but with a coarser, more scraping quality.