Rhyticeros

Rhyticeros is a genus of medium to large hornbills (Bucerotidae family) found in forests from south-east Asia to the Solomons. They are sometimes included in the genus Aceros. On the contrary, most species generally placed in Aceros are sometimes moved to Rhyticeros, leaving Aceros as a monotypic genus only containing the Rufous-necked Hornbill.