African Harrier-Hawk
| African Harrier-Hawk | |
|---|---|
 | |
| Adult at Selous Game Reserve, Tanzania | |
| Conservation status | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Accipitriformes |
| Family: | Accipitridae |
| Genus: | Polyboroides |
| Species: | P. typus |
| Binomial name | |
| Polyboroides typus Smith, 1829 | |
The African Harrier-Hawk, Harrier Hawk, orGymnogene (Polyboroides typus) is a bird of prey. It is about 60–66 cm in length, and is related to the harriers. It breeds in most of Africa south of the Sahara. The only other member of the genus is the allopatric Madagascar Harrier-Hawk.
Its habitat is woodland preferably with palm trees and often near water. It builds a stick nest in the fork of a tree or the crown of a palm tree. The clutch is one to three eggs.
The African Harrier-Hawk is a medium-sized raptor. The upperparts, head and breast are pale grey. The belly is white with fine dark barring. The broad wings are pale grey with a black trailing edge fringed with a narrow white line. The tail is black with a single broad white band. There is a bare facial patch of variable colour. Sexes are similar, but young birds have pale brown instead grey, and dark brown replacing black.
The African Harrier-Hawk is omnivorous, eating the fruit of theOil Palm as well as hunting vertebrates. Its ability to climb, using wings as well as feet, and its long double-jointed legs, enable this bird to raid the hole nests of barbets and woodhoopoes forfledglings. A comparable leg-structure and behavior can be found in the Neotropical Crane Hawk; a case of convergent evolution. The call is a whistled sueee-sueee-sueee.
