It is sometimes cited as the largest eagle alongside the Philippine eagle, which is somewhat longer on average, and the Steller's sea eagle, which is slightly heavier on average. They typically occur below an elevation of 900 m (3,000 ft), but have been recorded at elevations up to 2,000 m (6,600 ft) (Deforestation, habitat loss)Īlthough primarily a forest dweller in the Amazon and protected regions of Brazil's Mata Atlântica forest, Harpy Eagles can also observed in areas of the Cerrado and Pantanal biomes. The tarsus is up to 13 cm longĭespite size and strength, the hawk is fragile. The plumage of males and females are identical. The iris is gray or brown or red, the cere and bill are black or blackish and the tarsi and toes are yellow. The upper side of the tail is black with three gray bands, while the underside of it is black with three white bands. The head is pale grey, and is crowned with a double crest The birds' upper surfaces are slate black, with the underside being mostly white.Ī broad black band across the upper breast separates the grey head from the white belly. Heavier weights have been recorded for captive birds. Female Harpy Eagles typically weigh 6 to 9 kg in the wild – whereas males are smaller, ranging from 4 to 5 kg. This makes it slightly smaller in size than the Philippine Eagle, although Harpy Eagles still exceed them in bulk. Harpy eagles are 86.5–107 cm long, with a wingspan of 176 to 224 cm. These large, fast, and agile predatory birds undoubtedly inspired awe in early travellers given that their name recalls the Harpyja – half-woman, half-bird monsters of Greek mythology. There are even rare reports of them taking domestic livestock such as chickens, sheep, goats, and small pigs. Harpy Eagles are apex predators which take monkeys, sloths, baby deer, and other prey weighing up to 8kg. They have a powerful beak, talons or claws comparable with those of a grizzly bear, and legs about as thick as a human wrist. They're not the largest predatory bird on the planet, but Harpy Eagles (Harpia harpyja) are the strongest.
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