Adaptations
The Harpy Eagle has developed a special range of adaptions over the course of it's ancestral evolution. These adaptations will be divided into four categories below.
Size
With a wing-span of roughly two meters, and weighing up to nine kilograms, the Harpy Eagle is amongst the largest birds in the world. This obviously gives them an enormous advantage being the top predator as the Harpy Eagle is able to snatch up large prey, at speeds of up to 80 km/h. They can carry prey of roughly half their own body weight. For a relatively large bird, the Harpy Eagle has a small wingspan, an adaptation that increases maneuverability in their forested habitat.
Talons
Controversially the most distinctive feature of the Harpy Eagle are their five inch talons which are as long as a Grizzly Bear's claws. Once their prey are grasped in its hold, there is almost no escape. Apart from using their talons for attacking purposes, they also have an additional use. They allow the Harpy Eagle to perch (grasp hold of a tree branch) securely.
Nesting
Harpy Eagles construct nests of roughly 150 cm wide and 121 cm thick, and 27 to 40 meters high. They construct these nests from fresh green branches, which biologists believe may reduce the amount of parasites and line them with animal fur and soft vegetation. These nests provide their chick with a secure and insulated environment which is far enough above the ground to help them survive from potential predators lurking on the ground below them.
Feeding
Several adaptations help the Harpy Eagle catch and feed on their prey. Their vision is extraordinary. Harpy Eagles are able to see something as small as an inch from over 70 meters away. They are able to fly at speeds of over 80 km/h and weave through forests to catch their prey. Once their prey is caught, feeding isn't a problem as the Harpy Eagle is equipped with a pointy and extremely sharp beak that can easily tear through animal flesh so they can devour their dinner.