Black-casqued Wattled Hornbill

The black-casqued Wattled Hornbill, Ceratogymna atrata, is Africa's second-largest true hornbill, reaching 75 cm/30" in length and 1.6 kg/3.5 lbs in weight.  It is one of two species of wattled hornbill, having a long naked blue throat wattle and bare blue skin around the eyes.  Its plumage is all-black except for white tips to the outer tail feathers.  The huge casque on top of its bill is the largest of any African hornbill and might be used for amplifying its resonant braying calls.  This hornbill is found in equatorial rainforests in west and central Africa.  This is the male, the female has a buff to reddish brown face and head and a smaller bill and casque.  This is a pencil drawing with colour added digitally.