Crowned hornbills are often found in forests and sparsely wooded areas. They are common in coastal and riverine forests along the east coast of southern Africa. They also frequent gardens and parks in urban areas. Insects and other invertebrates make up most of the diet, and crowned hornbills often catch flying insects, such as moths, in mid-air. They do also eat smaller reptiles, birds, and amphibians, as well as seeds and fruit.