How many stag beetles have you ever seen?

Wandering up the garden this evening to shoo a cat away, I spent a little while watching a solitary blackbird in a tree. He was chirping at a stag beetle as it buzzed about.

As I watched, three or four stag beetles landed in formation in our Leylandii hedge, whilst two or more flew about in their sedate, upright kind of way.

For the next few minutes, I stood their and counted the little fellas as they buzzed to and fro, hither and thither, doing whatever it is that stag beetles do in hedges.

Did I see as many as ten, over the course of the time, or was it the same few coming round and round again? There were definitely four or more.

Meanwhile, two bats were darting over head in long, straight swooping lines, amazingly fast.