Britains smallest bird, weighing about the same as a 20p coin, and a real pain to try and photograph as it never stays still for more than a second!

But one was a little more obliging on the reserve this week and I managed to get a couple of snaps.

As you can see from its shiny little leg ring it is one we have caught recently during our bird ringing sessions. We seem to have a decent population of the little charmers.