A price on their heads? Implications of international trade for African hornbills in Cameroon

Tropical birds known for their massive bills, hornbills include 32 Asian and 27 African species in the avian family Bucerotidae. Many hornbills have a casque on their upper mandible, which in some species is spectacularly colorful. Many species also share a unique breeding strategy, in which nesting females incubate eggs and raise chicks inside sealed natural tree cavities for up to 100 days, depending entirely on males to bring them food.