Skulking and generally inconspicuous brown bird of humid tropical forest. Found as singles or pairs, clambering in vine tangles or other dense understory, at times in leaf litter on the forest floor; usually difficult to see clearly. Note the rich buffy throat, broad eyebrow, and the dark rusty tail on an otherwise dark brownish bird. Loud song is a repeated, churring rattle, given from middle level perches inside the forest.