The Javan Hawk-eagle is the national bird of Indonesia.

The Javan Hawk-Eagle is believed to be monogamous.

Among these are endangered species like the Javan Hawk-eagle and the Javan Scops Owl.

An Indonesian endemic, the Javan Hawk-Eagle occurs in humid tropical forests of Java.

Because of the plumage variability of Spizaetus eagles, the Javan Hawk-Eagle was not recognised as a full species until 1953.

The Javan Hawk-eagle, Spizaetus bartelsi is a medium-sized, approximately 61 cm long, dark brown raptor in the family Accipitridae.

Javan Hawk-Eagle, Nisaetus bartelsi (earlier Spizaetus bartelsi)

By Presidential decree, the Javan Hawk-eagle was legally registered as considered as the national bird of Indonesia, and thus attributing the endangered species very high protection.

The Javan Hawk-Eagle is the national bird of Indonesia, where it is commonly referred to as Garuda, from the bird-like creatures in Hindu and Buddhist myths.

In 2005, Gunung Halimun National Park was enlarged to three times its original size for restoration of the Javan leopard, the Javan gibbon, and the Javan Hawk-eagle.

The design of Garuda Pancasila was inspired by the Elang Jawa or Javan Hawk-eagle (Nisaetus bartelsi) an endangered raptor endemic to the mountainous forest regions of Java.

Garuda became the national emblem of Thailand and Indonesia; Thailand's Garuda is rendered in a more traditional anthropomorphic mythical style, while that of Indonesia is rendered in heraldic style with traits similar to the real Javan Hawk-eagle.

The intensity of mobbing predators was studied in Java and observations showed that there was a significant increase in mobbing, during the nesting season, of some predators such as the Javan Hawk-Eagle but the Black Eagle, a nest predator is mobbed with equal intensity in all seasons.