Another visit for Purple Emperor did produce one male but despite flying low over the path and thought about alighting, did not flew back into the canopy. Around 11 Silver-washed Fritillaries were seen, all fly throughs, along with 2 White Admirals and up to 5 Purple Hairstreaks (without spending all the time get neck ache looking at the top of Oaks). A single Crossbill was seen and 3 separate parties of marsh tits were heard/seen. The plodding around the woods in the Chilterns has on most occasions produced Marsh Tits so they seem to have a good stable population in the area.
Afterwards a visit to Sydlings Copse, another BBONT reserve that has or had Dark Green Fritillary failed to produce any, though stopping off at Bradenham on the way back produced a single, plus a couple of Small Blues and a few Gatekeepers, plus a newly emerged Marbled White was seen, along with a few older ones.
Purple Hairstreak - Bernwood
Small Tortoiseshell - Sydlings Copse
Large White
Small Heath - Bradenham
Dark Green Fritilliary
Meadow Brown
Small Blue
Gatekeeper