Though I only saw it in silhouette I knew from shape and size which of our ground squirrels I was seeing as I came down the Saddlehorn Trail. This is a rock squirrel, the one I see least. The trail wound away from it so this was my only good view, I did like that I could put the tops of saguaros behind it for context as it looked out from atop the large granite boulder.
When we moved to Arizona I was delighted to find lizards but also a bit baffled at identifying them. On my first visit to the Granite Mountain area I encountered a handful of little lizards in one rock formation on the Saddlehorn Trail but was particularly confused by one that, to my eye, looked milky white. When I brought the telephoto lens to my eye I understood my confusion, the little thing was molting and from some angles the dead skin looked white in the morning sun. I was even more surprised when it ran over to where I was standing, if only we could communicate so I could have offered to help remove the larger tufts. It must feel good when all the dead skin is gone!