Spiders, Kestrel and 100s Chalkhill Blue

While looking for that never-to-be-achieved perfect butterfly shot, we stumbled on a Wasp Spider site. This female at one time had 4 males in attendance but only 2 stayed by the time I set up for focus stacking (first and third image). There were plenty of other spiders around including one under a Knapweed flowerhead. I was entertained by a close Kestrel  male.