The
thick-billed raven (
Corvus crassirostris), 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 most diverse bird order, the
passerines. The thick-billed raven measures in length and weighs on average. 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 is black with a white tip and has deep nasal grooves with only light nasal bristle covers.