Japanese Sparrowhawk vs Besra

In short

The Japanese Sparrowhawk and Besra are similar in appearance, but can be distinguished by structural and plumage differences. The Japanese Sparrowhawk generally has a more compact structure with a shorter tail, while the Besra is slightly larger with a longer tail. Both species have similar plumage, but subtle differences exist in their underparts and facial markings.

Identification tips

1. Look for the shorter tail and more compact structure of the Japanese Sparrowhawk. 2. Note the pronounced supercilium and paler underparts in the Japanese Sparrowhawk. 3. Observe habitat preference: Japanese Sparrowhawk in open woodlands, Besra in dense forests. 4. Use size as a guide: Japanese Sparrowhawk is generally smaller. 5. Vocalizations are not a reliable differentiator.

Size

The Japanese Sparrowhawk is generally smaller and more compact than the Besra, which is slightly larger with a longer tail.

Plumage

Both species have similar plumage with barred underparts, but the Japanese Sparrowhawk often has a more pronounced supercilium and a slightly paler underside compared to the Besra.

Behaviour

Both species exhibit similar hunting behaviors, often seen gliding or soaring in search of prey. They are both agile and fast flyers.

Habitat

Both species can be found in forested areas, but the Japanese Sparrowhawk is more likely to be seen in open woodlands and edges, while the Besra prefers denser forest habitats.

Voice

Vocalizations are similar and not the most reliable field mark for differentiation, as both species have high-pitched calls.