A couple of photos from Brian who told us:
Whilst doing our Durlston East transect today, 02/05/2021 we counted 5 Wall Browns. The first I have seen this year. One was at Caravan Terrace by Durlston Castle and the others were on the wall at the back of the entrance to Tilly Whim Caves – we often see them at both places.
Editor’s Note: Brian also mentioned that the bottom photo was taken from about 25 feet away which is why it is not quite so clear but nevertheless it does show the lovely patterning and colouration on the wing.