Large Blue?

I think! Or possibly a small one!

Stopped at Collard Hill on the way back from golf with the intention of blipping my old friends, the horses, when I caught a glimpse of this.

Collard Hill is one of a few sites in the country where the large blue butterfly has been re-introduced, having previously disappeared from this country. I haven't been able to get a shot of one before, so was pleased to get these two.

It seemed a bit small for a large butterfly and the spots on the front of the wings aren 't very defined but the markings on the underneath of the wings look the same. Can anyone identify it for sure?

Off to Yeovil's JPT game against Portsmouth later.

Edit: many thanks to orchid99 for identifying this as a Common Blue rather than a large.