Barn Swallow vs Western House Martin

In short

Barn Swallows and Western House Martins can be differentiated by their tail and underpart coloration. Barn Swallows have a distinctive long forked tail and rufous-chestnut throat, while Western House Martins have a shorter, less forked tail and white underparts.

Identification tips

1. Look for the long forked tail of the Barn Swallow, which is more pronounced than the shorter tail of the Western House Martin. 2. Check the throat color: Barn Swallows have a rufous-chestnut throat, while Western House Martins have a white throat. 3. Observe the underparts: Barn Swallows have creamy or buffy white underparts, whereas Western House Martins have pure white underparts. 4. Note the rump color: Western House Martins have a distinctive white rump, absent in Barn Swallows.

Size

Both species are medium-sized swallows, but Barn Swallows appear more elongated due to their longer tail streamers.

Plumage

Barn Swallows have a glossy steel-blue upperpart with a rufous-chestnut throat and creamy or buffy white underparts. Western House Martins have a glossy blue-black upperpart with a white rump and pure white underparts.

Behaviour

Both species are aerial insectivores, often seen flying in open areas. Barn Swallows may be observed skimming closer to the ground compared to Western House Martins.

Habitat

Both species are found in open habitats, often near water and human settlements. Barn Swallows are more widespread, while Western House Martins are more commonly found in Europe and parts of Asia.

Voice

Both species have twittering calls, but specific vocal differences are subtle and not the most reliable field marks.