Black-and-white-casqued Hornbill Bycanistes subcylindricus Scientific name definitions

60–70 cm; male 1078–1525 g, female 1000–1250 g. Medium-sized to large black hornbill with white rump, tail-coverts and belly, broad white trailing edge to wings (including even tips of greater coverts), white-tipped outer tail feathers, grey-tipped feathers on face . Male nominate race bill dark brown; high ridged casque broad at base, laterally flattened with anterior projection, sides wrinkled, dark brown, creamy base; circum­orbital skin dusky pinkish. Female smaller, bill and casque blackish. Juvenile bill small, no casque. Race <em>subquadratus</em> larger, more white below, rear half of casque creamy.

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Editor's Note: Additional distribution information for this taxon can be found in the 'Subspecies' article above. In the future we will develop a range-wide distribution article.

Ecotone between evergreen forest, or forest patches, and secondary forest, also tall deciduous woodland and plantations, at up to 2600 m.

Mainly fruit , from at least 41 plant genera, and especially figs ; also small animals, mainly insects, but including millipedes, snails, lizards, bats, nest contents of birds, and small galagos. Feeds mainly in canopy, picking off fruit. Readily takes any small animals, extracted from vegetation, snatched in flight, or picked from the ground; sometimes hunts in groups. Often associates with monkeys and squirrels.

A series of loud, nasal barks “aanh...aanh...aanh...aanh”, sometimes given in a fast sequence like descending laughter, reminiscent of a female Mallard (Anas platyrhynchos).