The only leafbird within its range with an orange belly. Male is unmistakable with a blue-and-black face pattern, a solid orange belly, and green-and-blue wings. Female is green all over with blue cheeks and less extensive orange on the belly. The female can be confused with female Blue-winged Leafbird, but Orange-bellied has an orange belly and more blue on the face than Blue-winged Leafbird. Often moves about quietly in the upper layers of hilly and montane forests, gleaning insects from branches and foraging at fruiting and flowering trees.