Whilst on the 14.00 to 18.00 watch of 10 September 2009, Jane Evans and Robert Ephgrave were surprised by the number of butterflies seen to be flying around the look out. Quite a number of members of the public also came to the lookout to comment on this somewhat unusual occurrence. The general opinion was that they were Red Admirals (Vanessa atalanta).
Perhaps the fact that the wind conditions were unusually calm (force 0 on occasions) enabled them to fly around in such profusion. Not to mention the warmer, dry weather! Click image to enlarge.
Here are some interesting links for those who wish to investigate further: