Helmeted Hornbill
Photo: Doug Janson · CC BY-SA 3.0

Hornbills

Helmeted Hornbill

Rhinoplax vigil

CRCritically Endangered
Family
Hornbills (Bucerotidae)
Order
Bucerotiformes

Overview

The helmeted hornbill (Rhinoplax vigil) is a very large bird in the hornbill family. It is found on the Malay Peninsula, Sumatra, Borneo, Thailand and Myanmar. The casque (helmetlike structure on the head) accounts for some 11% of its 3 kg weight. Unlike any other hornbill, the casque is almost solid, and is used in head-to-head combat among males.

Summary from Wikipedia, available under CC BY-SA 4.0.

Range and habitat

Myanmar to southern Thailand, Malay Peninsula, Sumatra, and Borneo.

Range description: AviList Global Avian Checklist.

Sources and further reading

Last updated September 29, 2026.