We went to
Fermyn Wood in glorious sunshine yesterday (Monday 11th). Heavy traffic around Silverstone delayed our arrival until about 10.30am.
Despite plenty of cars in the mouth of the ride opposite the gliding club, there were surprisingly few butterflies on the wing. A visit to the Western ride found lots of Purple Hairstreak in a 'master tree' by the gravel clearing about 200m from the road. Every branch seemed to have hairstreaks looping around it - very active. Eventually, one looped down near enough for a photo - even showing some purple top-surface.

- Fermyn Woods - 11th July 2011
Later in the day, the best find was this variant Red Admiral on the main ride, which Piers has kindly informed me is known as ab.
bialbata. Note the white 'dots' within the red band.

- ab. bialbata - Fermyn Woods - 11th July 2011
We walked through to Lady Wood, which was also very quiet, except for some excitement caused by a White Admiral pretending to be an emperor, on the surface of one of the rides!
Other butterflies seen included Small and Large Skippers, Small and Gv Whites, Holly Blue, Peacock, Comma, Silver-washed Fritillary, Ringlet (lots), and Meadow Brown. Just a couple of probable high-flying Purple Emperors.
Mike