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Wallace's Hawk-Eagle - BirdForum Opus

Photo by Joe Pan
Sabah, Malaysia, August 2004
Nisaetus nanus

Spizaetus nanus

Identification

43–58 cm (17-22¾ in)

  • Rufescent sides of head with blackish streaks
  • Dark crest broadly tipped white
  • Three dark bands on tail
  • Buffish-white base to underside flight feathers
  • Warm buffish coverts with narrow dark barring

Distribution

South-east Asia: found from Myanmar to the Malay Peninsula, Borneo, and Sumatra.

The subspecies stresemanni is only found on the Nias island of Sumatra.

Taxonomy

Juvenile
Photo by horukuru
Gomantong Cave, Sabah, Borneo, November 2010

It was formerly placed in the genus Spizaetus.

Subspecies

Two subspecies are recognized[1]:

  • N. n. nanus:
  • N. n. stresemanni:
  • Nias Island (off western Sumatra)

Habitat

Evergreen rain forests, oil palm plantations, peat swamps and riverine forests.

Behaviour

Diet

Photo by Joe Pan
Kinabatangan District, Sabah, Malaysia, April 2006

It is thought they may specialise in birds, but their prey seems to include bats, squirrels, lizards, skinks and rats too.

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. BirdLife International

Recommended Citation

External Links


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