We have a bat. It's flapping around in the garden as I type and having a lot of fun. We've had it for a while, it either lives in the loft or (more likely) one of the bird boxes in our tree. Sweet little thing. I wonder how hard they are to photograph? My cam can take several continuous photos in a row so it might be worth a go, I'm just concerned about the flash spooking it a little. Not tonight for sure, it's definately getting too dark and a bit cold.