Turns out it was an Old Lady (you have to love the name of some moths!). Not a particularly colourful moth, but definitely big and a strong flyer. It was very feisty, but that may have been because I'd been chasing it for the last 10 minutes. I put it in a butterfly cage so it had a bit more room, but if I opened the lid to look at it, it immediately started revving up its wings to fly off or walked towards the gap to try to escape. After Bug Mad Girl had seen it, I let it go.
|Not a bat, just an Old Lady|