Black and White Casqued Hornbill - Bycanistes Subcylindricus
More extensive white in the wings compare to Silvery-cheeked Hornbill.
Male: a shorter bicoloured casque (blackish at front and pale behind) with greyish eye-rings.
Female: a smaller darker casque with greyish eye-rings also which tend to be more pinkish-red.
Spectacular and musical bugled 'waah' or ' waaaah' developing into a cacophonous din when birds call together.
Great variety of very raucous calls 'raaak, raaak, raaak, raaak, raaak' and loud single notes such as 'raaaaak.'