From Opus

Black-casqued Hornbill
Photo by Toy Janssen

Genus: Ceratogymna

[edit] Description

Two large African Hornbills.

• Females with much smaller casques than males
• Predominantly black plumage
• Blue pendulous wattles

Like the genus Bycanistes they live in forests and their behaviour is similar to the Asian Hornbills.

[edit] Taxonomy

Ceratogymna is a genus in the Family Bucerotidae.
The six species of the genus Bycanistes were formerly included in this genus.

[edit] References

1. Del Hoyo, J, A Elliot, and J Sargatal, eds. 2001. Handbook of the Birds of the World. Volume 6: Mousebirds to Hornbills. Barcelona: Lynx Edicions. ISBN 978-8487334306

• List of references