Ocyceros

Ocyceros is a genus of birds in the family Bucerotidae. Established by Allan Octavian Hume in 1873, it contains several species that are limited to the Indian subcontinent.[1][2]

Ocyceros
Head of Indian grey hornbill, woodcut from The Fauna of British India, Including Ceylon and Burma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Bucerotiformes
Family: Bucerotidae
Genus: Ocyceros
Hume, 1873
Species
  • O. birostris
  • O. gingalensis
  • O. griseus

Description

Hornbills in the genus Ocyceros are small Asian birds with curved triangular bills and grey plumage. As such, they are often called "grey hornbills". They have black and grey eye rings and their eyes are usually dark with black irises. All of the species have different coloured bills: the Indian grey hornbill has a dark greyish bill, the Sri Lanka grey hornbill has a pale yellowish bill, and the Malabar grey hornbill has a more yellowish orange bill.

Species

The genus contains three species:[3]

  • Indian grey hornbill (O. birostris)
  • Sri Lanka grey hornbill (O. gingalensis)
  • Malabar grey hornbill (O. griseus)

References
  3. Gill, Frank; Donsker, David, eds. (2019). "Mousebirds, Cuckoo Roller, trogons, hoopoes, hornbills". World Bird List Version 9.2. International Ornithologists' Union. Retrieved 23 July 2019.


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