Thick-billed raven

Thick-billed raven

Corvus crassirostris

The thick-billed raven, a corvid from the Horn of Africa, shares with the common raven the distinction of being the largest bird in the corvid family, and indeed the largest of the passerines. The thick-billed raven averages 64 cm in length, with a range of 60 to 70 cm and weighs approximately 1.15 kg in females and 1.5 kg in males on average. Its size is about the same as the largest species of common raven but some common raven subspecies are rather smaller and, going on average weights, the thick-billed raven is likely the heaviest extant passerine. The thick-billed raven is about 25% heavier on average than the Australasian superb lyrebird, which is sometimes erroneously titled the largest passerine. It has a very large bill that is laterally compressed and is deeply curved in profile giving the bird a very distinctive appearance. This bill, the largest of any passerine at 8–9 cm in length, is black with a white tip and has deep nasal grooves with only light nasal bristle covers. This raven has very short feathers on the head, throat and neck. The throat and upper breast have an oily brown gloss, while the rest of the bird is glossy black except for a distinctive white patch of feathers on the nape and onto the neck.

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Biogeographical realms

Thick-billed raven habitat map

Habits and Lifestyle

Seasonal behavior
Bird's call

Diet and Nutrition



1. Thick-billed raven Wikipedia article -
2. Thick-billed raven on The IUCN Red List site -
3. Xeno-canto bird call -

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