SpeciesHarpy Eagle
Vulnerable

Harpy Eagle

Harpia harpyja

About the Harpy Eagle

The Harpy Eagle (Harpia harpyja) is the largest and most powerful eagle in the Americas, inhabiting the lowland tropical rainforests that stretch from southern Mexico through Central America and into much of South America. Adults are visually distinctive: a pale gray head framed by a divided black-and-white facial disc, a slate-black back, and white underparts barred with black across the chest. They nest high in the canopy, often in emergent trees such as the Brazil nut (Bertholletia excelsa) or Kapok (Ceiba pentandra), and raise a single chick only once every two to three years, making population recovery from decline exceptionally slow.

As an apex predator, the Harpy Eagle regulates populations of medium-sized mammals, hunting sloths, monkeys, and large lizards with talons that can reach the size of a grizzly bear's claws. The species is listed as Vulnerable on the IUCN Red List, with deforestation identified as its primary threat: large-scale clearance for agriculture and cattle ranching across the Amazon Basin and Central America has fragmented the unbroken forest tracts the species needs to hunt and breed. Direct persecution, including shooting by farmers who fear for livestock, further reduces numbers in some regions.

Things worth knowing

  • Harpy Eagle talons can reach up to 13 centimeters (about 5 inches) in length, comparable in size to the claws of a grizzly bear.
  • A breeding pair holds a home range that can span tens of thousands of hectares of continuous forest, which makes the species particularly sensitive to habitat fragmentation.
  • The Harpy Eagle is the national bird of Panama, where it appears on the country's coat of arms.
  • Females are significantly larger than males, a pattern of reversed sexual dimorphism common in raptors, and can weigh up to approximately 9 kilograms (around 20 pounds).
  • A single chick is raised per nesting attempt, and parents continue to feed and guard it for up to a year after fledging, meaning a pair may breed only every two to three years.
  • Facial disc feathers can be raised or lowered to direct sound toward the ears, functioning similarly to the facial discs seen in owls and likely aiding hunting in dense forest understory.
Who protects them

0 organizations protect the Harpy Eagle

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