Distinctive dark cockatoo with truly massive bill. Inhabits rainforests and woodlands of New Guinea and northern Cape York Peninsula. Large patch of bare red skin on the cheeks and a long black crest distinctive. Use sticks to "drum" on trees during territorial displays. In flight, note all-black tail (Red-tailed Black-Cockatoo has bright red tail panels). Voice a sharp whistle or squeak, lacking the mournful, drawn-out wailing quality of Red-tailed Black-Cockatoo.