Monteiro's hornbill is named after Joachim J Monteiro.
Red-billed hornbills are territorial birds, usually seen in pairs or small family groups.
A dry, open Acacia savannah and stands of low bushveld are the most common habitats for the yellow-billed hornbill.
Crown hornbills favour tall, dense woodland in primary and secondary forest regions.
Bradfield's hornbill was named after RD Bradfield.
The African grey hornbill favours a wide range of wooded savannah and woodland habitat.
Trumpeter hornbills inhabit moist woodland and mangroves along riparian strips of forest in Namibia.