Ground-hornbill

The ground hornbills (Bucorvidae) are a subfamily of the hornbill family Bucerotidae, with a single genus Bucorvus and two extant species.

Taxonomy
The genus Bucorvus contains three extant species:
 * Abyssinian Ground Hornbill Bucorvus abyssinicus (also known as Northern Ground Hornbill)
 * Southern Ground Hornbill Bucorvus leadbeateri

A prehistoric ground hornbill, Bucorvus brailloni, has been described from fossil bones.