I'm currently housesitting this week, and the lovely garden is full of birds, bugs and all sorts! Here's a few which I believe to be a Common Blue, but I could be wrong! When I went to identify it online I was surprised at how many similar Blues there are. Taken in Surrey, if that affects ID.
LDC_0933 by Luke Case, on Flickr
Common Blue Butterfly? by Luke Case, on Flickr
LDC_0933 by Luke Case, on Flickr
Common Blue Butterfly? by Luke Case, on Flickr