A raven is one of several larger-bodied members of the genus Corvus. These species do not form a single taxonomic group within the genus, but share similar characteristics and appearances that generally separate them from other crows. The largest raven species are the common raven and the thick-billed raven.
The term "raven" originally referred to the common raven, the type species of the genus Corvus, which has a larger distribution than any other species of Corvus, ranging over much of the Northern Hemisphere.
The modern English word raven has cognates in all other Germanic languages, including Old Norse (and subsequently modern Icelandic) hrafn and Old High German (h)raban, all which descend from Proto-Germanic *khrabanas.
Larger species are, on average, about 50-67 cm in length, generally with thicker and longer bills, hackles and feet.
- Corvus albicollis – white-necked raven
- Corvus corax – common raven
- Corvus crassirostris – thick-billed raven
- Corvus ruficollis – brown-necked raven
Sizes of smaller species of raven can vary greatly, ranging from about 44-53 depending on the species and subspecies.
- Corvus coronoides – Australian raven
- Corvus cryptoleucus – Chihuahuan raven
- Corvus mellori – little raven
- Corvus rhipidurus – fan-tailed raven
- Corvus tasmanicus – forest raven
- †Corvus moriorum – Chatham raven
- †Corvus antipodum – New Zealand raven
- †Corvus corax varius morpha leucophaeus – pied raven
- Oxford English Dictionary entry for "raven."
- Simpson, J. and Weiner, E., ed. (1989). "Raven". Oxford English Dictionary (2nd ed.). Oxford: Clarendon Press. ISBN 0-19-861186-2.
- "Raven". Online Etymology Dictionary. Retrieved 2007-05-14.
- "Baltimore Bird Club. Group Name for Birds: A Partial List". Retrieved 2007-06-03.
- "University of California Golf Club. List of Collective Nouns". Retrieved 2008-07-16.
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