Common Buzzard vs Eastern Buzzard

In short

The Common Buzzard (Buteo buteo) and Eastern Buzzard (Buteo japonicus) are similar raptors with overlapping ranges in parts of Asia. While both species exhibit variable plumage, the Common Buzzard typically shows less rufous coloration compared to the Eastern Buzzard. Structural differences, such as wing shape and tail length, can be subtle but are useful in distinguishing these species.

Identification tips

1. Look for more rufous tones in the plumage of Eastern Buzzards, especially on the underparts and tail. 2. Observe the wing shape and tail length, though differences are subtle. 3. Consider geographic location; Common Buzzards are more likely in Europe, while Eastern Buzzards are found in Asia. 4. Use vocalizations cautiously, as they are similar and require experience to differentiate.

Size

Both species are similar in size, with no significant differences that are easily observable in the field.

Plumage

Common Buzzards generally have less rufous in their plumage compared to Eastern Buzzards, which may show more reddish tones, especially on the underparts and tail. However, both species exhibit considerable individual variation, making plumage alone an unreliable identifier.

Behaviour

Both species are opportunistic hunters, often seen soaring or perched while scanning for prey. They share similar hunting behaviors, such as foraging on the ground for insects and small vertebrates.

Habitat

Both species occupy a range of habitats, including woodlands and open areas. Common Buzzards are more widespread in Europe, while Eastern Buzzards are found in Asia, often in similar environments.

Voice

Vocalizations are similar, with both species producing a variety of calls, including mewing sounds. Differences in calls are subtle and not easily distinguished without experience.