Biology:Rhyticeros

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Short description: Genus of birds

Rhyticeros
Aceros undulatus -side upper body.jpg
Wreathed hornbill (R. undulatus)
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Bucerotiformes
Family: Bucerotidae
Genus: Rhyticeros
Reichenbach, 1849
Type species
Buceros plicatus[1]
Latham, 1790
Species

See text.

Rhyticeros is a genus of medium to large hornbills (family Bucerotidae) found in forests from Southeast Asia to the Solomons. They are sometimes included in the genus Aceros. On the other hand, most species generally placed in Aceros are sometimes moved to Rhyticeros, leaving Aceros as a monotypic genus only containing the rufous-necked hornbill.

All species generally placed in Rhyticeros have relatively low, conspicuously wreathed casques and a mainly dull whitish horn-colored bill. Both sexes have mainly black plumage, but the head and neck of the males are white or rufous. The tail is white except in the black-tailed Sumba hornbill. They have conspicuous inflatable skin on the throat, which is blue in all except the males of the plain-pouched and wreathed hornbills, where it is yellow.

Species

The following six species are placed in the genus:[2]

Image Scientific name Common Name Distribution
Rhyticeros plicatus - Heidelberg.jpg Rhyticeros plicatus Papuan (or Blyth's) hornbill Wallacea and Melanesia.
Narcondam hornbill.jpg Rhyticeros narcondami Narcondam hornbill Narcondam
Rhyticeros subruficollis Plain-pouched hornbill southern Myanmar, adjacent parts of western Thailand and northern Peninsular Malaysia
Rhyticeros undulatus -Diergaarde Blijdorp -male-8a.jpg Rhyticeros undulatus Wreathed hornbill north-eastern India and Bhutan, east and south through mainland Southeast Asia and the Greater Sundas in Indonesia
Stavenn Sumba Hornbill Wiki.jpg Rhyticeros everetti Sumba hornbill Sumba in the Lesser Sunda Islands
Aceros cassidix - Weltvogelpark Walsrode 2011-05.jpg Rhyticeros cassidix Knobbed hornbill Sulawesi, Buton, Lembeh, Togian and Muna Island.

An undescribed extinct hornbill species from Lifou in the Loyalty Islands, living until at least some 30,000 years ago, was initially placed in Aceros, but its biogeography places it with the species now in Rhyticeros (Steadman, 2006).

References

  1. "Bucerotidae". The Trust for Avian Systematics. https://www.aviansystematics.org/4th-edition-checklist?viewfamilies=92. 
  2. Gill, Frank; Donsker, David; Rasmussen, Pamela, eds (December 2023). "Mousebirds, Cuckoo Roller, trogons, hoopoes, hornbills". IOC World Bird List Version 14.1. International Ornithologists' Union. https://www.worldbirdnames.org/bow/mousebirds/. 
  • 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
  • Steadman, David William (2006): Extinction and Biogeography of Tropical Pacific Birds. University of Chicago Press. ISBN:0-226-77142-3

Wikidata ☰ Q1081421 entry