Black-and-white-casqued Hornbill

The Black-and-white-casqued hornbill (Bycanistes subcylindricus) also known as the grey-cheeked hornbill, is a large—approximately 70 cm (28 in) long—black and white hornbill. It has an oversized blackish bill with a large casque on top. The female is slightly smaller than the male and has a significantly smaller casque.

First photo is the female, second is the male.