Pacific Swift vs Little Swift

In short

The Pacific Swift and Little Swift can be distinguished by their tail shape and underpart coloration. Pacific Swifts have a deeply forked tail, while Little Swifts have a square or slightly notched tail. Additionally, Pacific Swifts show a contrasting white rump and darker underparts compared to the Little Swift's paler underparts.

Identification tips

1. Look for the tail shape: Pacific Swift has a deeply forked tail, Little Swift has a square or slightly notched tail. 2. Check the rump: Pacific Swift has a more contrasting white rump. 3. Consider the size: Pacific Swift is larger. 4. Observe the habitat: Little Swift is more urban, Pacific Swift is often in open or coastal areas.

Size

Pacific Swift is generally larger than Little Swift.

Plumage

Pacific Swift has a contrasting white rump and darker underparts. Little Swift has a less contrasting white rump and paler underparts.

Behaviour

Both species are aerial feeders, often seen in swift, acrobatic flight. Behaviorally similar, they can be seen in flocks, especially during migration.

Habitat

Pacific Swift is often found in open areas, including coastal regions and forests, while Little Swift is more commonly found in urban areas and near cliffs.

Voice

Both species have high-pitched calls, but specific differences in vocalization are not well-documented.