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Carrion Crow - BirdForum Opus

Revision as of 14:04, 3 April 2011 by Wintibird (talk | contribs)
Photo by RichUK

Alternative names: Common Crow; Eurasian Crow; Oriental Crow (orientalis)

Corvus corone

Identification

48-54cm. A compact crow:

  • All black plumage with a green or purple sheen
  • Dark brown iris
  • Black, stout bill
  • Legs dark grey to black

Sexes similar, juveniles with duller plumage. Hybrids between corone and Hooded Crow occur regularly.

Similar species

Corone may be confused with young Rook. The shape of head and the flight are quite different.

Distribution

Carrion Crow in flight
Photo by I4ani
Dartmoor, Devon, UK, 2010

Most of western Europe to the most eastern points of northern Asia.
Common or abundant in most of its range despite persecution by gamekeepers and farmers.

Taxonomy

Was formerly considered conspecific with Hooded Crow.

Subspecies1

Two subspecies accepted:

Habitat

Found almost anywhere from coast to moorland, even city centres. 3

Behaviour

Ingenious adaption to all urban environments and intelligent. Can be observed sitting atop of trafficlights and dropping hardcased nuts onto the streets below so to make use of the crushing effects of traffic; and will retrieve the contents at a 'red' signal.

Diet

The diet includes carrion, insects, worms, seeds, fruit and scraps.

Breeding

Breeding season generally in northern spring. A pair stays often together over several years and throughout the year. Usually a solitary nester. The large nest is built by both sexes and is made out of sticks. It's usually placed high in a tall tree. Nests on buildings, electricity pylons or cliffs are also known. Lays 4 eggs. The chicks leave the nest after 32 days. In some parts of the range Great Spotted Cuckoo may parasitize the nest.

Vocalisation

<flashmp3>Corvus corone (song).mp3</flashmp3>
Listen in an external program

References

  1. Clements, James F. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to October 2007. Ithaca: Cornell University Press. ISBN 9780801445019
  2. Parkin, D.T., M. Collison, A. Helbig, A.G. Knox, and G. Sangster. 2003. "The taxonomic status of Carrion and Hooded Crows." British Birds. 96 (6): 274–90.
  3. RSPB
  4. 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

Recommended Citation

External Links


Threads about taxonomy of Hooded and Carrion Crow:
[1] and [2]

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