Both Franklin Park Zoo and Stone Zoo are Sold Out Monday 4/19 and Tuesday 4/20. We hope you can visit on another day!

Know Before You Go: We've modified the Zoo experience in accordance with public guidance and health recommendations. Please review our FAQs (FPZ and SZ) before your visit. Members:​ Online reservations are required for your visit.

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Rhinoceros Hornbill

Buceros rhinoceros

Rhinohornbill Gallery

About the Rhinoceros Hornbill

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Class: Aves
Order: Bucerotiformes
Family: Buceritodae
Genus: Buceros
Species: rhinioceros

Hornbills have what appears to be a second beak, or “horn,” growing out of their forehead, hence the name “hornbill.” This horn is actually a casque—a hollow structure made of keratin. It's believed that the purpose of the casque is to act like a megaphone and amplify the male hornbill's mating call.

Rhinoceros Hornbill Facts

Appearance:

Rhinoceros hornbills can weigh upwards of 6 pounds and measure almost 3 feet long. They have black feathers on their bodies and white feathers on their legs. Their tails are white with a black band. Both the beak and casque are orange and red in color. 

Diet:

Hornbills eat mostly fruits, but will occasionally eat insects and small animals.

Reproduction:

The female hornbills lays her eggs in a hollow tree cavity, and with help from the male, seals herself and her eggs inside with a paste made of fruit, mud and feces. Only a small slit is left open so that the male can pass food to the female (and later, the chicks) for four to five months. The female breaks herself out when the chicks are old enough, but the male and female seal the chicks back up again for several more months until the chicks are old and strong enough to break out of the nest on their own. 

Behavior:

Rhinoceros hornbills spend most of their time high up in the canopy of tropical forests. Their large wingspans and long tail feathers allow them to gracefully fly from one branch to another. Hornbills typically mate for life.

Habitat/Range:

Hornbills live in large trees in tropical rainforests in several countries in Southeast Asia, including Indonesia, Thailand, Sumatra, and Malaysia.

Median Life Expectancy:

35 years

Fun Fact:

The rhinoceros hornbill is the national bird of Malaysia.