These medium to very large raptors are immediately distinguished by their fully feathered legs. The females are larger than the males, this is most pronounced in the larger species that attack big prey. They are powerful and agressive hunters but are not averse to carrion. Hawk eagles are smaller than most other eagles and are active, fast flyers.
The wings are long and broad, but the tails vary from shortish to medium, depending on the preferred hunting technique of the particular species. They prey on medium sized to small mammals, birds and reptiles.
Their eyesight is adapted for locating prey from height. Eagles often hunt on the wing, soaring effortlessly for hours, but they may also search for prey from a perch. The prey is grabbed and usually killed with the powerful talons.
Long term pair bods are common , with pairs usually roosting in the same tree. Many species have alterative nest sites in the territory, used in rotation. The stick platform-type nests are often reused and may become very large through constatn addition of nesting materials. Both sexes usually build the nest, but the female does most of the incubation. Larger species often nest in winter so that the young hatch in spring when food procurement is easier. Chicks are fed by regurgitation from the crop.

Aquila = eagle
Hieraaetus = hawk eagle
Polemaetus = war eagle
rapax = grasping
pennatus = feathered
spilogaster = spotted stomach
bellicosus = warlike

Wikipedia

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