Zarzalero de Sichuan Locustella chengi

Drab brown warbler of hilly central China; russet-brown above and cold gray-brown below, with dark stripes on the vent. Like many other bush warblers, very difficult to see as it skulks deep in dense vegetation; typically prefers to scurry or run instead of fly to reach cover. Note song: a plain, amphibian- or insect-like rasping, lower than that of Russet Bush Warbler.