A stroll across the city and around the misnamed Mousehold Woods for butterflies. Birds were scarce, as is always the case here (bar that one time when there was a flock of Arctic Redpoll), with a Whitethroat the only thing I stopped to look at. I went as far as the prison on one side and the playing fields on the other, scanning brambles for White Admiral butterflies, but none. I did manage 2 Purple Hairstreaks flying around oaks near Vinegar Pond, but they never came within photographic range. I took a picture of a damselfly that I can't ID, it was a very deep blue and has too much black to be a standard male Common Blue, Azure or Variable. Suggestions welcome.