HORNBILLS – AVIAN CHARACTERS OF THE KRUGER
“Hornbill species have casques of various sizes. The casque is a horny structure on the top of the upper mandible, the function of which has been uncertain. The current view is that the primary function of the casques is for reinforcement that allows greater force to be applied at the tip. The casque is apparently also used in calling.”
Hornbills (Bucerotidae) are a family of birds widely distributed through tropical and sub-tropical Africa, Asia and Melanesia. Worldwide 55 extant species are currently recognised, though further genetic research may indicate that reclassification of some might be necessary. There are 24 species to be found in Africa of which six occur in the Kruger National Park (KNP).
They are generally not particularly colourful birds, being predominantly black and white, but some also show greys or browns. They are characterised by their large, downwardly curving beaks that often are colourful, rendering the bird
