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Variable Hawk - BirdForum Opus

Revision as of 19:59, 8 May 2010 by Deliatodd-18346 (talk | contribs) (Main picture changed. Photos of Juvenile & flight added. References)

Alternative name: Variable Hawk

Buteo polyosoma
Photo by lior kislev
Puno to Cusco road, Peru, December 2009

Identification

Male: 18 - 20 in. Female: 20 - 22 in.

  • White tail with black sub-terminal band

Male

  • Grey back
  • Grey or white underparts

Female: usually have a rufous back but may have either white or rufous underparts.

Juvenile
Photo by zweiblumen
Cape Pembroke, Falkland Islands, April 2004

Distribution

South America: found in Colombia, Ecuador, Peru, Bolivia, Brazil, Uruguay, Chile, Argentina and Falkland Islands.

Taxonomy

Subspecies[1]

Two subspecies are recognized:

Habitat

Temperate forests, subtropical or tropical dry forests, subtropical or tropical dry shrubland, and subtropical or tropical high-altitude shrubland. Observed at heights around 3000 meters

Behaviour

Diet

Photo by BirdsPeru
High Andes, Lima, Peru, November 2006

This bird catches its prey on the wing, and eats mammals, birds, reptiles and snails. It likes to sit on the highest branches of trees or edges of ravines.

Breeding

It nests in treetops. The nest is large and made of dry sticks. The clutch generally consists of 2 white eggs with light reddish spots.

References

  1. Clements, JF. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to October 2007. Ithaca: Cornell Univ. Press. ISBN 978-0801445019
  2. Avibase
  3. BF Member observations

Recommended Citation

External Links

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