A small, virtually tailless olive-green bird. Note the slightly darker cap and the pale eyebrow. There is geographical variation in the color of the underparts, which vary from brown-and-gray to buff-and-yellow. Found at middle levels and in the understory of rainforest, secondary growth, and scrub, often in pairs or small groups. Very similar to Lemon-bellied Crombec, but slightly larger, longer-billed, and even the subspecies that shows yellow on the belly is duller yellow below than Lemon-bellied. An inconspicuous bird that is most often detected by its song, a quick musical warble in a descending pattern.