Philippine Eagle - Ecology and Behavior

Ecology and Behavior

Evolution in the Philippine islands, without other predators, made the eagles the dominant hunter in the Philippine forests. Each breeding pair requires a large home range to successfully raise a chick, and thus the species is extremely vulnerable to deforestation. Earlier it has been estimated that the territory is about 100 square kilometres (39 sq mi), but a study on Mindanao Island found the nearest distance between breeding pairs to be about 13 kilometres (8.1 mi) on average, resulting in a circular plot of 133 square kilometres (51 sq mi).

The species' flight is fast and agile, resembling the smaller hawks more than similar large birds of prey.

Juveniles in play behavior have been observed gripping knotholes in trees with their talons and, using its tail and wings for balance, inserting its head into a tree cavity. Additionally, they have been known to attack inanimate objects for practice as well as attempt to hang upside down to work on their balance. As the parents are not nearby when this occurs, it has been suggested that they do not play a role in teaching the juvenile to hunt.

Life expectancy for a wild eagle is estimated to be anywhere from 30 to 60 years. A captive Philippine Eagle lived for 41 years in Rome Zoo, and it was already adult when it arrived at the zoo. However, it is believed that wild birds on average live shorter lives than captive birds.

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