Just joined and have a butterfly that I can't identify.
The nearest I can get in my book is the Common Grayling, but would like to be sure, quite a few of these about in the dunes on Norfolk coast (Waxham to be precise). First one has a bit of a dark background, but second is a bit better. They're different specimens as well but look the same to me

Any recommendations for a book that has both open & closed wing pictures in it?
Cheers
Dave