The harpy is one of the largest species of eagle. As is often the case with birds of prey, females are larger than males. The birds can grow to 36 to 40 inches. Females weigh between 13 to 20 ...

A harpy eagle guards her chick in a nest in Amazonian Brazil. Females are bigger than males and can weigh about 24 pounds, with claws often larger than a grizzly bear’s.