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The smaller [[Northwestern Crow]] has hoarser voice; the larger [[Common Raven]] has wedge-shaped tail. | The smaller [[Northwestern Crow]] has hoarser voice; the larger [[Common Raven]] has wedge-shaped tail. | ||
==Distribution== | ==Distribution== | ||
| − | Breeds from [[British Columbia]], central interior [[Canada]], and [[Newfoundland]] south to southern [[California]], [[Gulf Coast]], and [[Florida]]. Winters north to southern [[Canada]]. | + | Breeds from [[British Columbia]], central interior [[Canada]], and [[Newfoundland]] south to southern [[California]], [[Gulf Coast]], and [[Florida]]. Winters north to southern [[Canada]].<br /> |
| + | Common in most of its range. | ||
[[Image:5632DSC 0961-D2H-Crow.jpg|thumb|350px|right|Photo by {{user|colorob|colorob}}<br />Littleton, [[Colorado]], May 2004 ]] | [[Image:5632DSC 0961-D2H-Crow.jpg|thumb|350px|right|Photo by {{user|colorob|colorob}}<br />Littleton, [[Colorado]], May 2004 ]] | ||
==Taxonomy== | ==Taxonomy== | ||
| − | Consists of four | + | Consists of four subspecies. |
====Subspecies<sup>[[#References|1]]</sup>==== | ====Subspecies<sup>[[#References|1]]</sup>==== | ||
*''C. b. brachyrhynchos'' - Central and e Canada to e-central US; winters to se US | *''C. b. brachyrhynchos'' - Central and e Canada to e-central US; winters to se US | ||
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*''C. b. pascuus'' - Peninsular [[Florida]] | *''C. b. pascuus'' - Peninsular [[Florida]] | ||
*''C. b. paulus'' - Eastern [[United States]] | *''C. b. paulus'' - Eastern [[United States]] | ||
| + | ''Paulus'' is not accepted by all authorities. May form a superspecies with [[Northwestern Crow]] (or the latter may be a subspecies of this species) and known to be closely related with [[Carrion Crow]]. | ||
==Habitat== | ==Habitat== | ||
Deciduous growth along rivers and streams; orchards and city parks. Also mixed and coniferous woods, but avoids closed coniferous forests and desert expanses. Gathers in large flocks in fields in spring and fall. | Deciduous growth along rivers and streams; orchards and city parks. Also mixed and coniferous woods, but avoids closed coniferous forests and desert expanses. Gathers in large flocks in fields in spring and fall. | ||
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Familiar ''caw-caw'' or ''caa-caa'' | Familiar ''caw-caw'' or ''caa-caa'' | ||
==References== | ==References== | ||
| − | # | + | #{{Ref-Clements6thDec08}}#{{Ref-HBWVol14}} |
| + | {{Ref}} | ||
==External Links== | ==External Links== | ||
{{GSearch|Corvus+brachyrhynchos}} | {{GSearch|Corvus+brachyrhynchos}} | ||
[[Category:Birds]][[Category:Corvus]] | [[Category:Birds]][[Category:Corvus]] | ||
Revision as of 13:37, 9 March 2010
- Corvus brachyrhynchos
Identification
L. 17-21" (43-53 cm)
Distinctive, stocky black bird with stout bill and fan-shaped tail.
Similar Species
The smaller Northwestern Crow has hoarser voice; the larger Common Raven has wedge-shaped tail.
Distribution
Breeds from British Columbia, central interior Canada, and Newfoundland south to southern California, Gulf Coast, and Florida. Winters north to southern Canada.
Common in most of its range.
Taxonomy
Consists of four subspecies.
Subspecies1
- C. b. brachyrhynchos - Central and e Canada to e-central US; winters to se US
- C. b. hesperis - N British Columbia to sw US and n Baja California
- C. b. pascuus - Peninsular Florida
- C. b. paulus - Eastern United States
Paulus is not accepted by all authorities. May form a superspecies with Northwestern Crow (or the latter may be a subspecies of this species) and known to be closely related with Carrion Crow.
Habitat
Deciduous growth along rivers and streams; orchards and city parks. Also mixed and coniferous woods, but avoids closed coniferous forests and desert expanses. Gathers in large flocks in fields in spring and fall.
Behavior
Its nest-plundering is decried, but in orchards and fields it destroys many injurious insects such as grasshoppers and cutworms. However, the labeling of birds as either "harmful" or "useful" is misleading and antiquated. Crows do destroy many eggs and nestlings of woodland and meadow birds, but they also weed out the weak and feeble, and they alert the animals in a neighborhood when danger approaches.
Breeding
4-6 dull green eggs, spotted with dark brown, in a large mass of twigs and sticks lined with feathers, grass, and rootlets, and placed in a tree. Intelligent, wary, virtually omnivorous, and with a high reproductive capacity, the American Crow is undoubtedly much more numerous than it was before the arrival of settlers.
Diet
An opportunist in its feeding, the American Crow consumes a great variety of plant and animal food: seeds, garbage, insects, mice.
Vocalization
Familiar caw-caw or caa-caa
References
- Clements, JF. 2008. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2008. Ithaca: Cornell Univ. Press. ISBN 978-0801445019.
- 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
- BirdForum Opus contributors. (2024) American Crow. In: BirdForum, the forum for wild birds and birding. Retrieved 16 May 2024 from https://www.birdforum.net/opus/American_Crow
