Join for FREE
It only takes a minute!
Magnifying the passion for nature. Zeiss Victory Harpia 95. New!

Welcome to BirdForum.
BirdForum is the net's largest birding community, dedicated to wild birds and birding, and is absolutely FREE! You are most welcome to register for an account, which allows you to take part in lively discussions in the forum, post your pictures in the gallery and more.

Personal tools
Opticron - NEW DBA VHD+ 8x42, 10x42 coming soon
Main Categories

American Crow

From Opus

Photo by LeslieThousand Oaks, California, USA, Spring 2003
Photo by Leslie
Thousand Oaks, California, USA, Spring 2003
Corvus brachyrhynchos

Contents

[edit] Identification

L. 17-21" (43-53 cm)
Distinctive, stocky black bird with stout bill and fan-shaped tail.

[edit] Similar Species

The smaller Northwestern Crow has hoarser voice; the larger Common Raven has wedge-shaped tail.

[edit] 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.

Photo by colorobLittleton, Colorado, May 2004
Photo by colorob
Littleton, Colorado, May 2004

[edit] Taxonomy

Consists of four subspecies.

[edit] Subspecies

There are 4 subspecies1:

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.

[edit] 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.

[edit] 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.

[edit] 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.

[edit] Diet

An opportunist in its feeding, the American Crow consumes a great variety of plant and animal food: seeds, garbage, insects, mice.

[edit] Vocalization

Familiar caw-caw or caa-caa

[edit] References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2016. The eBird/Clements checklist of birds of the world: v2016, with updates to August 2016. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. 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

[edit] External Links


Advertisement

Opticron - NEW DBA VHD+ 8x42, 10x42 coming soon

Fatbirder's Top 1000 Birding Websites

Help support BirdForum

Page generated in 0.27187991 seconds with 6 queries
All times are GMT. The time now is 02:18.