Plume-toed Swiftlet vs Himalayan Swiftlet

In short

The Plume-toed Swiftlet and Himalayan Swiftlet are both small, dark swifts often found in similar habitats, making them challenging to distinguish. The most reliable field mark is the plumage and tail shape: Plume-toed Swiftlets have a more uniform plumage and a slightly forked tail, while Himalayan Swiftlets show a paler rump and a more squared tail.

Identification tips

1. Look for the paler rump on the Himalayan Swiftlet. 2. Note the tail shape: slightly forked in Plume-toed, more squared in Himalayan. 3. Consider habitat: Himalayan Swiftlets are more likely in mountainous areas. 4. Observe plumage glossiness: Plume-toed Swiftlets have a more uniform and glossy appearance.

Size

Both species are similar in size, with no significant differences noticeable in the field.

Plumage

Plume-toed Swiftlet has a more uniform dark plumage with a slightly glossy appearance, whereas the Himalayan Swiftlet typically shows a paler rump which can be a key distinguishing feature.

Behaviour

Both species exhibit similar swift-like flight patterns, often seen in flocks, making behavior a less reliable distinguishing factor.

Habitat

Plume-toed Swiftlets prefer areas with green cover from sea level to montane forests, including islands and archipelagos. Himalayan Swiftlets are more associated with mountainous regions but can overlap in some areas.

Voice

Vocalizations are not a reliable distinguishing feature in the field as both species have similar calls.