Large brown warbler with a streaked back and a long broad tail. Chunkier and shorter-tailed than much larger Striated Grassbird. Clambers around the dense tall grasses of lowland grasslands; favors areas with scattered shrubbery. Reclusive and will generally not flush twice in succession. Song a springy “wee-chew, chewa-wee!”, given from top of vegetation or in flight.