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Crested serpent eagles are apex predators and have no known predators, they are the rulers in the sky of Sumatran rainforests. Flying around to control their territory made them to become a very adaptable carnivores.

Crested Serpent Eagle


Crested serpent eagle (Spilornis Cheela) are native to the Oriental region. In India, Crested serpent eagles can be found from the lower Himalayas to Sri Lanka and the Andamans. Further east they can be found in Southeast Tibet and Southeast China. Outside of mainland Asia, they can be found on the Sumatra islands, Bali and the Philippines.

Crested serpent eagles are medium-sized eagles. They can be found in a wide range of habitats, including rainforest, open savannah, mangrove swamps, plantations, ravines, evergreen and deciduous forest, and tidal creeks. They catch lizards, frogs, toads, large insects, and small birds. Crested Serpent Eagles have also been known to catch eels and crabs.

Crested serpent eagle (Spilornis Cheela) ranges in length from 55 to 76 cm, and their wingspan ranges from 109 to 169 cm. They can weigh from 420 gram to 1.8 kg. The nest is made by sticks and leaf branch, Crested serpent eagle (Spilornis Cheela) often makes their nests close to the water such as small valley and river.

According to our research, the crested serpent eagles have 3 different sounds that can be detected as their activities, such as song to show their presence on the nest, hunting sounds and the call of the males to their couples.

In Bukit Lawang, Gunung Leuser National Park, the male and female crested serpent eagles sometimes found flying together to hunt the preys. Both will participate in nest construction, however only the female will incubate the egg.

Their medium size are known well to increase their agility of hunting compared to another eagles with bigger size. This ability always used to hunt their preys such as snakes and another reptiles in the difficult areas that almost impossible to be reached for another eagles.

In Bukit Lawang, Gunung Leuser National Park, North Sumatra, the crested serpent eagle (Spilornis Cheela) prey primarily on snakes, that's why in Bahasa Indonesia, they are named "Elang Ular (elang means eagle, ular means snake)" by local people. As the apex predators, the crested serpent eagles are a good indicator of ecosystem health. The crested serpent eagle (Spilornis Cheela) are the important keys in controlling snake populations since snakes are their main source of food. They also likely play a role in controlling the numbers of other small mammals and reptiles that they eat.

Crested Serpent Eagle
(Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Accipitriformes, Family: Accipitridae, Genus: Spilornis, Species: Spilornis Cheela).

Green Patrol

Viki is working as green patrol officer said "as wildlife lover and protector, I will do my best to protect the jungle and all animals in Gunung Leuser National Park, I really hope, this works can help the population of crested serpent eagle rise up".