I know Bev, I couldn't quite make it out either. One of the pictures seemed to show the "M", but since the girls are M52 and M53, it wasn't much help.
Checked out the site today at about 2-2:30 pm. I spotted Beatrix on the south sign of the Diner, with one falcon flying very high over the site in slow, lazy circles, drifting to the southwest. I circled about the arean and came back to the Diner when I saw a falcon fly to the NW corner. Turned out to be Beatrix again. She didn't stay long and flew off to the northwest.