3 Porthcressa beach
White rump and tail diagnostic
Assumed these were Barn Swallows because of the pointiness, but looks like the one on the right has a white face and rump.
Four birds flying north with swallows
Delichon is a small genus of passerine birds that belongs to the swallow family and contains three species named as house martins. These are chunky, bull-headed and short-tailed birds, blackish-blue above with a contrasting white rump, and with white or grey underparts. They have feathering on the toes and tarsi that is characteristic of this genus. The house martins are closely related to other swallows that build mud nests, particularly the Hirundo barn swallows. They breed...