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Thick-billed Raven - BirdForum Opus

Photo by Andrew S
Simien Mountains, Ethiopia, November 2004
Corvus crassirostris

Identification

60 - 64 cm. A very large, unmistakable raven:

  • Massive bill, laterally compressed and deeply curved. Black with a white tip and deep nasal grooves with only light nasal bristle covers.
  • Very short feathers on the head
  • Plumage black, upperparts with blue or purple-blue gloss
  • Large white patch on upper nape
  • Throat and side of neck brownish-black

Sexes similar. Juveniles with all black bill, duller and more sooty brown than adult.

Distribution

Endemic to the highlands of Eritrea and Ethiopia.
Widespread and common in its range.

Photo by michha62
Gondar, Ethiopia, November 2008

Taxonomy

This species is monotypic.[1]
Forms a species pair with White-necked Raven and with the latter sometimes placed in genus Corvultur.

Habitat

Mountains and high plateau. Found in a wide range of habitats from montane grassland to open forest, city parks and gardens.

Behaviour

  • Diet - Includes grubs, beetle larvae from animal dung, carrion, scraps of meat, and other human foods.
  • Breeding - Nests in trees and on cliffs, building a stick nest. 3-5 eggs are laid.

References

  1. Clements, JF. 2008. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2008. Ithaca: Cornell Univ. Press. ISBN 978-0801445019.
  2. Del Hoyo, J, A Elliott, and D Christie, eds. 2009. Handbook of the Birds of the World. Volume 14: Bush-shrikes to Old World Sparrows. Barcelona: Lynx Edicions. ISBN 978-8496553507

Recommended Citation

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