Lesser Fish-Eagle vs Grey-headed Fish-Eagle

In short

The Lesser Fish-Eagle and Grey-headed Fish-Eagle are similar in appearance and habitat, but can be distinguished by head coloration and vocalizations. The Lesser Fish-Eagle has a more uniform dark head, while the Grey-headed Fish-Eagle features a distinct grey head. Both species are often found near water bodies, but their calls differ significantly.

Identification tips

1. Head Color: Look for a grey head on the Grey-headed Fish-Eagle, contrasting with the darker head of the Lesser Fish-Eagle. 2. Vocalizations: Listen for the distinctive 'wailing' calls of the Lesser Fish-Eagle. 3. Habitat and Behavior: Observe their behavior near water bodies; both species perch and hunt similarly, but vocal activity can help differentiate them during the breeding season.

Size

Both species are similar in size, with no significant differences noted in field observations.

Plumage

The Lesser Fish-Eagle has a more uniform dark brown head and body, whereas the Grey-headed Fish-Eagle is characterized by its distinct grey head contrasting with a darker body. Both have similar underparts and tail patterns.

Behaviour

Both species exhibit similar hunting behavior, often perching near water and diving for fish. They are more conspicuous during the breeding season due to increased vocal activity and soaring.

Habitat

Both species inhabit riverine forests and are associated with water bodies, including rivers and lakes. They share overlapping ranges and habitat preferences.

Voice

The Lesser Fish-Eagle is known for its 'wailing' calls, especially during the breeding season. The Grey-headed Fish-Eagle's calls are different, but specific details are less documented.