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. Frequently incorporates the songs and calls of other species into its vocalizations.