The Yellow-casqued Hornbill lives in lowland evergreen forests of West Africa. Males have a cream-coloured casque, while females have a brown head and a smaller casque.
Males have a black body and cream-coloured casque. Females have a brown head, a yellowish-brown bill, and a smaller casque; both sexes have white outer tail feathers.
It feeds mainly on fruit high in large trees, but also takes insects and millipedes. It usually moves in pairs or small groups and may fly widely through the forest to reach fruiting trees.
An extinction-risk assessment has not been added yet.