Yesterday I saw for the first time in a while a flotilla of ducks grooming, eating, diving , and sunning in a quiet place in the river.
The mallard male on the left was stretching out his wing to groom while another male dozed nearby. At upper right is a nut or gall that I found and sliced into when I was unable to crack it. It was filled with resinous brown putty-like stuff.
And here are the rest of today's studies of things with tiny holes in them.