Swift safe return?

Whilst not seeing dolphins at Newquay this morning heard the seeee reeee calls of swifts overhead , something thats been a rare occurance  for me in the last couple of years. There were about eighteen to start with then twentysomething and then over thirty, then there were none. My guess is they were migrating back south when they hit the rain clouds  that were hanging on the coast and came down to feed.
Another similar sized group above Fishguard ring road (top) roundabout at about three this afternoon may also have been part of a general movement...
Lets hope they all return safely next year.