The Philippine Eagle (Pithecophaga jefferyi) is one of the rarest, largest and most powerful birds in the world. This bird of prey, or raptor, belongs to the family Accipitridae. It is also known as "Haribon" or "Haring Ibon," meaning "Bird King."
This eagle's head is adorned with long brown feathers that give it the appearance of a lion's mane. The upperside of the Philippine Eagle is brown, the underside white; the heavy legs are yellow with large, powerful claws; the prominent large, high-arched, deep bill is a bluish-gray, with blue-gray eyes. The average female is about 1 meter (3.3 feet) long, weighs about 7 kg (15.5 lb), and has a wingspan of 2 meters (6.7 feet). This makes the Philippine Eagle one of the world's largest eagles, with the largest wing surface area. The Harpy Eagle and Steller's Sea Eagle are about the same size as this species. The adult male is about 10-20% smaller and averages at about 5 kg (11 lbs). The life expectancy for the Philippine Eagle is around 30-60 years.
The Philippine Eagle can be found in rainforests of four major Philippine islands - Luzon, Samar, Leyte and Mindanao; the largest number of eagles reside on Mindanao.