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Ceratogymna

From Wikipedia, the free encyclopedia

Ceratogymna
Black-casqued hornbill (Ceratogymna atrata)
Scientific classification Edit this 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).

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Transcription

Species

Genus Ceratogymna – Bonaparte, 1854 – two species
Common name Scientific name and subspecies Range Size and ecology IUCN status and estimated population
Black-casqued hornbill

Ceratogymna atrata
Temminck, 1835 		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. Size:

Habitat:

Diet: 		 LC 


Yellow-casqued hornbill

Ceratogymna elata
(Temminck, 1831) 		West Africa Size:

Habitat:

Diet: 		 VU 


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

  1. ^ "Bucerotidae". aviansystematics.org. The Trust for Avian Systematics. Retrieved 2023-07-26.
  2. ^ a b 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
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This page was last edited on 5 February 2024, at 05:53
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