Thanks guys for your input.  The frogs give my family a lot of joy.  They live in a small pond in our backyard, so I can check in on the regularly to see if any interesting things going on.  They love to sit on the flat stone in this picture, and as I walked by, I was thrilled to see this arrangement,  esp. the fact that they were all about in the same plane, so I thought I had a chance of catching them all in focus with one frame.  Z6, 80-400 at 400mm. f/16 at 1/160s. I had tried the 500PF, but that was too tight to tell the whole story.
Randy