Fluffy bird butt

Here we see the lesser known fluffybutt, native to Blackheath and well known for mooning anyone wielding a camera in their direction....

(I think it's actually a long-tailed tit - can anyone confirm that?)

I was off sick again this morning, but rallied a bit as the day went on, so worked from home in the afternoon. I had a feeling I'd have a few birdy visitors throughout the day, so kept my camera and long lens on the sofa beside me. I took quite a lot of photos, but of course the only ones that came out sharp were the butt portraits ;)