This cute little guy is an ornate tree lizard or Urosaurus ornatus. He looks a little malnourished. If you look closely, you can see his ribs sticking out. We were concerned but didn't know how to diagnose physical ailments in lizards. The first time I went to take photos of lizards, I tried hand-holding my 500mm lens, but this time I took my tripod and got a lot better results.