Rhyticeros everetti
The Sumba Hornbill (Rhyticeros everetti) is a striking, medium-sized hornbill endemic to the Indonesian island of Sumba, renowned for its distinctive casque and vital role in its ecosystem. Males typically measure around 70 cm (28 inches) in length, featuring a prominent, pale yellow casque atop a large, creamy-yellow bill. Their plumage is predominantly black, contrasted by a white tail, a pale yellow throat pouch, and a rufous-brown crown and nape, making them relatively easy to identify. F...
The Sumba Hornbill exclusively inhabits primary and tall secondary evergreen forests on the island of Sumba, typically found from lowlands up to elevations of around 900 meters (3,000 feet). They prefer dense canopy cover for foraging and nesting.
Their diet consists primarily of fruits, especially figs, supplemented with a small proportion of insects and other small invertebrates. They are crucial seed dispersers within their forest habitat.
Sumba Hornbills are diurnal, active from dawn until dusk, often roosting in tall emergent trees within their forest territories. They are primarily arboreal, spending most of their time in the canopy, foraging solitarily, in pairs, or occasionally in small family groups. Their foraging strategy i...
The Sumba Hornbill's entire global distribution is restricted to the island of Sumba in the Lesser Sunda Islands archipelago of Indonesia. It is a resident species throughout this limited range, meaning it does not undertake any migratory movements. Within Sumba, its presence is primarily confine...
Vulnerable
- The Sumba Hornbill is a true island endemic, found nowhere else in the world except the Indonesian island of Sumba. - Like all hornbills, the female Sumba Hornbill seals herself into a tree cavity during nesting, relying entirely on the male to bring her food through a narrow slit. - The casque...