While Dan was here with his cat Nelo, I had a fun time taking her out into the yard and taking photos of her and whatever else caught my eye, all the while keeping a sharp eye on her, following her around wherever she went. When she rounded the corner from the side of the house to the front, a squirrel up on the roof set up a constant stream of outrage -- or so it seems to me, though he could have been sending a warning to all squirrels within hearing "cat, cat, cat, cat, cat, cat, cat, cat, cat, cat." So I turned my camera upward and focused on him (or her).
Another squirrel up in a tree set up a similar racket a couple of days later: http://365project.org/mcsiegle/alternates/2016-03-12