Alternative name: Crested Hawk-Eagle
- Nisaetus cirrhatus
51–82 cm (20-32¼ in)
- Brown upperparts
- White underparts
- Barred underside of flight feathers and tail
- Black streaks on throat
- Dark brown streaks on breast
Sexes alike; females larger
The name is due to the dual morph phases - a dark morph and a pale morph.
Five subspecies are recognised which are sometimes split in two species :
Crested Hawk-Eagle (Nisaetus cirrhatus):
Changeable Hawk-Eagle (Nisaetus limnaeetus)
- limnaeetus from north-east India to the Philippines, Borneo, and Java
- andamanensis in the Andaman Islands
- vanheurni on Simalur
Deciduous and evergreen forests, gallery forests, open woodland and savanna from sea-level up to 3,300m, hunting over forest edge and clearings.
The stick nest isplaced in a tree. A single greyish-white egg is laid.
The diet includes mammals which include squirrels, hares and rats, small and large birds and reptiles such as lizards, frogs and snakes.
Generally considered a resident species.
Call: loud, high-pitched ki-ki-ki-ki-ki-ki-ki-ki-kee.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2019. The eBird/Clements Checklist of Birds of the World: v2019. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Handbook of the Birds of the World Alive (retrieved November 2015)
- BirdForum Opus contributors. (2021) Changeable Hawk-Eagle. In: BirdForum, the forum for wild birds and birding. Retrieved 16 April 2021 from https://www.birdforum.net/wiki/Changeable_Hawk-Eagle