Fauna
Bird

Rhinoceros Hornbill

Buceros rhinoceros

Also known as Bornean Hornbill, Rhinoceros Bird

Rhinoceros hornbills navigate the rainforest canopy using their massive, upward-curving orange casques to amplify deep, reverberating calls that carry across the forest. Mated pairs form lifelong bonds, working together during nesting when the female seals herself inside a tree cavity for months while the male brings her food. These iconic birds play a crucial role as primary seed dispersers for canopy trees across Southeast Asia.

Canopy DwellerFrugivoreVocal
Rhinoceros Hornbill reference1 / 7
(c) Thomas Quine, some rights reserved (CC BY) · cc-by
—observations
—countries
—peak records
VulnerableConservation statusIUCN Red List categoriesLCNTVUENCREWEXVulnerableRed List categories, explained →
Key facts
Diet & preyFigs, Insects, Small Lizards
Predators
  • Eagles
  • Pythons
ThreatsDeforestation, logging, and hunting for feathers and casques
HabitatsLowland and montane tropical rainforests up to 1,400 m
Life span30–35 years
Classification
  1. FamilyBucerotidae
  2. SpeciesBuceros rhinoceros
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Capable of delivering a powerful bite with its massive bill; observe quietly from a distance.
Why it is dangerous
The strong, sharp beak can cause severe crushing injuries or deep puncture wounds if handled.
How to recognize a risky encounter
Look for a large black bird with a red and orange horn-like casque on its massive bill.
What to do
Never attempt to catch or touch a wild bird; leave handling to licensed wildlife rescuers.
What to notice
Recognized by its black plumage, white tail with a dark bar, and prominent curved casque.
Support conservation
Observe from a safe distance and do not publish precise coordinates of active nest trees.
Responsible observation
  • Listen for Calls: Listen for loud, roaring calls and heavy wingbeats in the upper canopy.
  • Watch Fruiting Trees: Search high in canopy fig trees during early morning feeding periods.
  • Keep Distance: Avoid disturbing active nest cavities to prevent parents from abandoning chicks.
Related species
Help improve the field guideSomething wrong?

Report a name, category, or profile issue for review.

Checking your Fauna account…