House martin
Delichon urbica
Blue-black wings and back, the under parts including throat are white. Look for the white rump and the short black forked tail.
Habitat: often seen feeding over water or open farmland.
Distribution: found throughout the UK although scarce in far north and west of Scotland.
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House martin (blickwinkel/Alamy)
Not to be confused with
Swallow
Swallows have much longer tail streamers and a red throat. (Amy Lewis/WTML)
Sand martin
Sand martins have dark brown upper parts and a dark chest bar. (northeastwildlife.co.uk)
Swift
Swifts are dark brown with scythe shaped wings. (northeastwildlife.co.uk)
