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A raven is any of several larger-bodied passerine bird species in the genus Corvus. These species do not form a single taxonomic group within the genus. There is no consistent distinction between crows and ravens; the two names are assigned to different species chiefly based on their size.
It is one of the two largest corvids, alongside the thick-billed raven, and is the heaviest passerine bird; at maturity, the common raven averages 63 centimetres (25 inches) in length and 1.47 kilograms (3.2 pounds) in weight, though up to 2 kg (4.4 lb) in the heaviest individuals. Although their typical lifespan is considerably shorter, common ...
The brown-necked raven (Corvus ruficollis) is a larger bird (52–56 cm in length) than the carrion crow though not as large as the common raven.It has similar proportions to the common raven but the bill is not so large or deep and the wings tend to be a little more pointed in profile.
Hooded crow (Corvus cornix) in flight Jungle crow (Corvus macrorhynchos) scavenging on a dead shark at a beach in Kumamoto, Japan. Medium-large species are ascribed to the genus, ranging from 34 cm (13 in) of some small Mexican species to 60–70 cm (24–28 in) of the large common raven and thick-billed raven, which together with the lyrebird represent the larger passerines.
The Anchorage White Raven is a common raven (Corvus corax) of unknown sex. It is white with blue eyes, making it leucistic. [1] Birds with the leucistic phenotype are rare, with a 1 in 30,000 chance of being hatched. [1] [2] Due to the bird's condition, concerns were expressed that it would have a hard time surviving the winter. [3]
The white-necked raven has a much shorter tail than the common raven, as well as a deeper bill with a white tip that is almost as strongly arched as that of the thick-billed raven. Though predominantly black, the throat, breast and neck show a faint purple gloss. There is a large patch of white feathers on the nape of the neck.
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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. The thick-billed raven averages 64 cm (25 in) in length, with a range of 60 to 70 cm (24 to 28 in) and weighs approximately 1.15 kg (2.5 lb) in females and 1.5 kg (3.3 lb ...