Seedpods and squirrel nest

Picked up the top seed pod rosette on this morning's walk (something like sensitive plant); wish it would keep, but the seeds are already popping out. The second is horsemint gone to seed. And below is one of two nests built by squirrels about a week and a half ago in my hackberry tree. I noticed small branches all over the lawn, and when I looked up, there was the squirrel pruning, catching (sometimes), and carrying up the branches to the work-in-progress.