March 24 - Striped whipsnake, Masticophus taeniatus.
As I walked up a south facing slope two snakes shot out from underfoot. I moved a few feet away and started taking pictures, trying to figure out what kind they were. Black with yellow side stripes, and very fast. One returned under the rock they must have been sheltering under. The other, which was larger and longer (about 4 feet), circled slowly until I backed further away. It too returned to the rock and disappeared under it. I wondered if I had interrupted them mating. When I returned past the same spot about 1/2 hour later, I looked over at the rock & saw one of their heads sticking out looking back at me. Looking closer I saw the other watching too.