crested hawk eagle

The Crested Hawk-Eagle (Nisaetus cirrhatus), also widely known as the Changeable Hawk-Eagle, is a medium-to-large bird of prey found throughout South and Southeast Asia. As a member of the Accipitridae family, this raptor is celebrated for its striking appearance and its role as an apex predator in its ecosystem.

This eagle measures between 58-77 cm in length. It is characterized by its broad wings, long tail, and a prominent, narrow crest on its head. One of its most defining features is its extreme plumage variation; it occurs in several color morphs, ranging from pale forms with white underparts and dark streaks to almost entirely black (melanistic) individuals.

The Crested Hawk-Eagle primarily inhabits open woodlands, deciduous forests, and forest edges. It is highly adaptable and can also be found in cultivated areas, tea plantations, and suburban parks, provided there are tall trees available for perching and nesting.

A formidable hunter, its diet consists of a wide variety of prey. It feeds on small mammals like squirrels and hares, various birds, and large reptiles including lizards and snakes. It typically employs a "perch-and-wait" hunting strategy, scanning the ground from a concealed branch before striking with speed.

During the breeding season, these eagles construct large, sturdy stick nests high in the canopy of tall trees. They typically lay a single egg. Both parents are territorial and protective of the nest site, though the female handles the majority of the incubation while the male provides food.

The Crested Hawk-Eagle is a solitary and territorial bird. It is often seen perched upright on high, exposed branches. It is known for its vocal nature, frequently emitting a loud, high-pitched whistling call that sounds like "klee-klee-klee-ee," particularly during the morning hours or when defending its territory.

The species is currently listed as Least Concern by the IUCN. While the population remains relatively stable across its range, it does face threats from habitat fragmentation and the loss of large nesting trees due to urban expansion.

1. The name "Changeable" refers to the bird's multiple color morphs, which can make identification challenging for beginners.
2. Unlike many other eagles, the Crested Hawk-Eagle has feathered legs all the way down to its toes.
3. It was previously classified under the genus Spizaetus before being moved to Nisaetus.
4. They have incredibly powerful talons, allowing them to take down prey nearly their own size.

• Scan the tops of tall, dead trees at the edge of forests for their upright silhouette.
• Use the bird's distinctive whistling call to locate them in dense foliage.
• Pay close attention to the legs; the feathering down to the toes is a key identification mark.
• Early morning is the best time for sightings as they often sun themselves to dry their feathers.

The Crested Hawk-Eagle is a magnificent raptor that embodies the wild beauty of Asian forests. Its adaptability to different environments and its striking variety of plumage make it a favorite subject for birdwatchers and wildlife photographers alike.