Asian House Martin vs Sri Lanka Swallow

In short

The Asian House Martin and Sri Lanka Swallow are both small swallows but differ in key structural and plumage features. The Asian House Martin has a more compact build with a shorter tail and distinct white rump, while the Sri Lanka Swallow has a longer tail and lacks the white rump, featuring a more uniform underpart coloration.

Identification tips

1. Look for the white rump on the Asian House Martin. 2. Note the tail length: shorter in Asian House Martin, longer in Sri Lanka Swallow. 3. Observe the underpart coloration: more uniform in Sri Lanka Swallow. 4. Consider the habitat: Asian House Martins are more likely near human structures, while Sri Lanka Swallows prefer less disturbed areas.

Size

The Asian House Martin is slightly more compact with a shorter tail compared to the more elongated Sri Lanka Swallow.

Plumage

Asian House Martin has a distinctive white rump and darker upperparts, while the Sri Lanka Swallow lacks the white rump and has more uniform rufous underparts.

Behaviour

Both species exhibit similar aerial foraging behaviors typical of swallows, but the Asian House Martin is more likely to be seen in flocks.

Habitat

Asian House Martins are often found in open areas near human settlements and cliffs, while Sri Lanka Swallows are more restricted to forest edges and open country in Sri Lanka.

Voice

Vocalizations are not a primary distinguishing feature in the field; both species have typical swallow calls.