The Harpy Eagle (Harpia harpyja) lives in the tropical lowland forests of Central and South America, from southeastern Mexico to northern Argentina and southern Brazil. The male weighs 10-16 pounds and the female weighs 14-18 pounds. Their wigs span up to 7 feet for an adult. They sing long whistles repeated about 8-12 times. Other calls including a series of short clicks.

The Harpy Eagle builds large nests of sticks above the canopy of the forest, 100- 120 feet high on the crutch of the first branch of the tallest tree. When they lay their eggs they don't hatch until about 53 to 56 days after they were laid. Only one chick hatches, although two eggs are laid. The baby, once hatched, stays with his/her parents for 18 months. After the baby eagle is gone, the female will not try to have another for three years.

A Harpy Eagle primarily eats medium-sized and large fat mammals, mainly sloths. Also some reptiles,such as Green Iguanas, and few birds are liked among this eagle. They are common in the Amazon region; rare, or gone, elsewhere. The reason they are disappearing is because of forest fragmentation, destruction of nesting sites, and shooting.