Blyth's Swift vs Little Swift

In short

Blyth's Swift and Little Swift can be challenging to differentiate in the field due to their similar size and shape. However, Blyth's Swift generally has a more uniform dark plumage, while Little Swift often shows a contrasting white rump. Observing their flight patterns and habitats can also aid in identification.

Identification tips

1. Look for the white rump patch on Little Swift, absent in Blyth's Swift. 2. Consider the habitat: Little Swift is more urban. 3. Observe size and shape; Blyth's Swift may appear slightly larger and more robust.

Size

Both species are similar in size, but Blyth's Swift may appear slightly larger and more robust.

Plumage

Blyth's Swift is uniformly dark with no distinct white rump, whereas Little Swift typically has a noticeable white rump patch, which is a key distinguishing feature.

Behaviour

Both species exhibit similar swift-like flight patterns, characterized by rapid, agile movements. However, Little Swift may be seen flying lower and closer to human habitation.

Habitat

Blyth's Swift is often found in more open and mountainous regions, while Little Swift is more commonly associated with urban areas and human structures.

Voice

Vocalizations are not a primary distinguishing feature as both species have similar high-pitched calls typical of swifts.