So having popped to Collard in the last few days during other activites, I know from speaking to the volunteers on duty and with my own eyes, that the Large Blues are still very much around!
Yesterday, myself and a group of students from Strode college actually sat halfway up the bank of the Eastern Glade (not on any Wild Thyme of course) and saw a few flying on the lower half of the slope. This morning, behind the gorse I saw 4 flying and volunteers Roger and Barry saw at least 12 during the day today.
Having spoken to Dave Simox it is likely that the Large Blues will be flying at Collard for at least another two weeks but diminishing in numbers so it will still be worth visiting to see the Large Blues until around mid July. I shall put a notice on here once the flight season has been deemed over.