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White Hawk

From Opus

Subspecies albicollisPhoto by: Dave B Smith   Trinidad
Subspecies albicollis
Photo by: Dave B Smith
Pseudastur albicollis


[edit] Identification

Subspecies costaricensisPhoto by Stanley JonesRio Torti, Torti, Panamá Province, Panama, February 2018
Subspecies costaricensis
Photo by Stanley Jones
Rio Torti, Torti, Panamá Province, Panama, February 2018

47–51 cm (18½-20 in);

  • White head, body and underwings
  • Black upper wings
  • Short black tail with a broad white band
  • Black bill
  • Yellow legs

The sexes are similar, but females are larger and heavier.
Immature birds have extensive black spotting on the upperparts and dark-streaked whitish underparts.

[edit] Variations

  • ghiesbreghti: White with black markings on the outer primaries, black sub-terminal tail bar, yellow eyes
  • costaricensis: Distinct black markings on the wings and tail, brown eyes
  • williaminae: Wing feathers heavily marked with black, black streaks on the crown and collar, broader tail band, brown eyes

[edit] Distribution

Central and South America
Mexico, Nicaragua, Panama, Honduras, Colombia, Venezuela and Brazil.

[edit] Taxonomy

Formerly included in the genus Leucopternis.

[edit] Subspecies

There are four subspecies[1]:

  • P. a. ghiesbreghti:
  • P. a. costaricensis:
  • P. a. williaminae:

P. a. albicollis:

[edit] Habitat

Mature tropical rainforest, up to 1400 m. Sometimes seen in sub.tropical forests. Observed at 151 m in Panama.

[edit] Behaviour

[edit] Diet

Their diet consists of reptiles, large insects and mammals, including snakes, lizards, mice, rats and small opossums

[edit] Breeding

They build a large stick platform nest in a tree. The clutch consists of 1 dark-blotched blue-white egg.

[edit] References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from
  2. Handbook of the Birds of the World Alive (retrieved Feb 2018)
  3. Wikipedia
  4. BF Member observations

[edit] Recommended Citation

[edit] External Links


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