Biology:Ceratogymna
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Short description: Genus of birds
| Ceratogymna | |
|---|---|
| |
| Black-casqued hornbill (Ceratogymna atrata) | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Bucerotiformes |
| Family: | Bucerotidae |
| Genus: | Ceratogymna Bonaparte, 1854 |
| Type species | |
| Buceros elatus[1] Temminck, 1831
| |
| Species | |
|
2, see text. | |
Ceratogymna is a genus of large, primarily frugivorous hornbills (family Bucerotidae) found in the humid forests of Central and West Africa. They are sexually dimorphic: males are all black, while females have brown heads and a smaller casque.[2] Unlike the members of the genus Bycanistes, the two species in the genus Ceratogymna have extensive, primarily blue, bare facial skin and dewlap, and the only white in their plumage is in the tail (although the yellow-casqued wattled hornbill has slight whitish speckling on the neck).
Species
| Image | Scientific name | Common Name | Distribution |
|---|---|---|---|
 |
Ceratogymna atrata | Black-casqued hornbill | Angola, Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Equatorial Guinea, Gabon, Ghana, Guinea, Liberia, Nigeria, Sierra Leone, South Sudan, Togo, and Uganda. |
 |
Ceratogymna elata | Yellow-casqued hornbill | West Africa |
Skeletons of female (left) and male (right) black-casqued hornbills, showing the sexual dimorphism present on their bills. (Museum of Osteology)
The members of the genus Bycanistes have been included in this genus, but today most authorities consider the two separate.[2]
References
- ↑ "Bucerotidae". The Trust for Avian Systematics. https://www.aviansystematics.org/4th-edition-checklist?viewfamilies=92.
- ↑ 2.0 2.1 Kemp, A. C. (2001). Family Bucerotidae (Hornbills). Pp. 436-523 in: del Hoyo, J., Elliott, A., & Sargatal, J. eds. (2001). Handbook of the Birds of the World. Vol. 6. Mousebirds to Hornbills. Lynx Edicions, Barcelona. ISBN:84-87334-30-X
Wikidata ☰ Q578464 entry
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