Flick of the Elbow
Pentlands Water of Leith
Seen hardly any. Seeing more swifts than anything, their numbers seem to be similar to normal but not so their fellow hirundines. Is this UK wide or just here in Embra ?

There used to be multitudes of swifts in my part of north London but over the last ten years numbers have crashed. Now one can see flights of just half a dozen or so on most days, but not all day. My impression is that the energy crisis and the drive to improve insulation has led the owners of blocks of flats to improve insulation which often leads to blocking any roof-level entry and exit points which is where the swifts love to nest.
Swift nesting boxes exist:
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Ciick here for details, thoroughly recommended for anyone with a north-facing wall who would like to favour one of our symbols of summer.