Knobbed Hornbill
Rhyticeros cassidix
VUVulnerable Endemic to Indonesia
- Family
- Hornbills (Bucerotidae)
- Order
- Bucerotiformes
Overview
The knobbed hornbill (Rhyticeros cassidix), also known as Sulawesi wrinkled hornbill, is a colourful hornbill native to Indonesia. The species is sometimes placed in the genus Aceros. The knobbed hornbill is the faunal symbol of South Sulawesi province.
Summary from Wikipedia, available under CC BY-SA 4.0.
Range and habitat
Sulawesi region, including Lembeh and Togian Islands (off northeast), and Muna and Buton (off southeast).
Range description: AviList Global Avian Checklist.
Sources and further reading
- Wikipedia: Knobbed hornbill
- eBird: sightings, maps and photos
- xeno-canto: sound recordings
- Birds of the World: full species account (subscription)
- BirdLife DataZone: status and threats
- IUCN Red List (threat status)
- AviList global checklist (taxonomy)
Last updated September 29, 2026.
