The Harpy Eagle is the largest and most powerful raptor in the Americas. They are named after the legendary harpy creatures that brought the dead to the Greek god Hades. The Harpy Eagle only brings kills to one thing: its young. The Harpy Eagle eats sloths, monkeys, and macaws. Although this eagle is huge, it has a pretty small wingspan. But this allows the eagle to go through the dense canopy. The Harpy Eagle's weight is also surprising. The average Harpy Eagle weighs 20 pounds, mostly due to the hollow bones that helps a bird fly.