[rec.birds] Swifts depart London

teexmmo@ioe.lon.ac.uk (Matthew Moore) (08/06/90)

Despite the recent record breaking t weather (99F, 37.5C), the
swifts seemed to have departed London already, (none seen for several
days on the 6th August). I did notice what looked like the
pre-migration massing early last week.

Any other sightings?