Swifts on the move - NOT amateur radio

Swifts are a common sight in the UK skies in spring and early summer. They are often heard screaming in feeding parties on the wing before being seen.

It is some days since I last saw any. I think they are migrating south. The odd straggler may be about, but most will be gone from the UK until next spring.

See https://www.rspb.org.uk/birds-and-wildlife/wildlife-guides/bird-a-z/swift/ .