Rhabdotorrhinus corrugatus
The Wrinkled Hornbill, *Rhabdotorrhinus corrugatus*, is a striking medium-sized hornbill characterized by its prominent, deeply furrowed casque atop a large, pale bill. Males average 70-80 cm in length and can weigh around 1.3-1.8 kg, while females are slightly smaller. Distinctive field marks include the creamy-white head and neck, contrasting with a black body, and a vibrant yellow-orange casque in males, often with a reddish base, while females have a smaller, less corrugated, yellowish ca...
Primarily inhabits lowland and hill primary evergreen rainforests, often near rivers or swampy areas, up to elevations of about 1,000 meters.
Predominantly frugivorous, feeding heavily on figs and other forest fruits, supplemented with insects, small vertebrates, and arboreal invertebrates.
Wrinkled Hornbills are diurnal, spending their days foraging in the upper canopy and typically roosting in tall emergent trees. They are largely frugivorous, methodically searching for fruit, especially figs, among branches, occasionally supplementing their diet with insects or small vertebrates....
The Wrinkled Hornbill has a fragmented distribution across Southeast Asia, primarily found on the Malay Peninsula, Sumatra, and Borneo. On the Malay Peninsula, its range extends from southern Thailand southwards, though populations are sparse. In Sumatra, it is found throughout the island, partic...
Endangered
- The Wrinkled Hornbill gets its name from the deep furrows or 'wrinkles' on the casque of the male, which are less pronounced in females. - During nesting, the female completely seals herself inside a tree cavity using a paste of mud, droppings, and fruit pulp, relying entirely on the male to fe...