A small, grayish-brown hornbill with a pale brow, an obvious casque above the bill (larger in males), and a dual-toned black-and-yellow bill. In flight, note the pale edges on the wings and tail, as well as long central tail feathers. When flying, beats its wings rapidly followed by a short glide. Prefers open woodlands, plantations, gardens, and parks in cities where it feeds on large, fruiting trees. Usually seen in pairs or small groups. The calls include a series of short “kek-kek-kek” notes given in flight and a squealing, hawklike high-pitched “kieeeeu” when perched.