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Wallace's Hawk-Eagle - BirdForum Opus

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

Spizaetus nanus


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


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

The subspecies stresemanni is only found on the Nias island off of Sumatra where it is possibly extinct.


Photo by Jason Bugay Reyes
Gomantong Cave, Sabah, Borneo, November 2010

It was formerly placed in the genus Spizaetus.


Two subspecies are recognized[1]:

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


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



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.


  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
  2. BirdLife International

Recommended Citation

External Links

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