- Corvus crassirostris
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.
Mountains and high plateau. Found in a wide range of habitats from montane grassland to open forest, city parks and gardens.
- 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.
- 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.
- 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
- BirdForum Opus contributors. (2021) Thick-billed Raven. In: BirdForum, the forum for wild birds and birding. Retrieved 12 May 2021 from https://www.birdforum.net/wiki/Thick-billed_Raven