From David Halford
I live in North Herts, between Baldock and Stevenage, on the edge of a village overlooking fields and woodland. I have today found a live female Emporer butterfly in my greenhouse. It is now outside, looking a little bit dazed! I have taken a photo of it for posterity. This is the first time I have seen such a butterfly since moving here in 1988.
Is this a rare sighting for this part of the world?