Dark, chunky barbet with an odd tuft of buff feathers on its forehead. Usually found in small groups on and around dead trees in lowland rainforest, gallery forest, and secondary growth. Sometimes occurs alongside Gray-throated Barbet. The vocalizations include nasal “squeaky toy” calls and agitated dry rattles. Gray-throated Barbet also has a dark bill, but Sladen’s Barbet is separated from that species by its largely unfeathered head.