Common Swift vs White-throated Swift

In short

The Common Swift and White-throated Swift are both fast-flying birds with similar body shapes, but they can be distinguished by key plumage features and habitat preferences. The Common Swift is mostly dark with a small off-white throat patch, while the White-throated Swift has a more prominent white throat and belly, with white patches on the wings.

Identification tips

1. Look for the white throat and belly of the White-throated Swift, which contrasts with its darker wings. 2. Note the habitat: Common Swifts are more widespread, while White-throated Swifts prefer rocky terrains. 3. Listen for the Common Swift's distinctive screaming calls, especially during the breeding season.

Size

Both species are similar in size, but the Common Swift has a slightly larger wingspan.

Plumage

The Common Swift is predominantly dark brown with a small off-white throat patch. In contrast, the White-throated Swift has a striking white throat and belly, with white patches on the wings, making it appear more contrasting in flight.

Behaviour

Both species are highly aerial, spending most of their time in flight. The Common Swift is known for being airborne for extended periods, even during migration.

Habitat

The Common Swift is found across a wide range of habitats, from temperate to boreal zones, while the White-throated Swift is more commonly associated with rocky areas and canyons in North America.

Voice

Vocalizations are not well-documented for the White-throated Swift, while the Common Swift is known for its high-pitched screaming calls.