Another Snake!

Last night we found a snake on our driveway -- today another snake came to visit. He/She was on the front porch! This is definitely a different snake (bigger, and without the injuries), but it appears to be the same species.



I searched today, but was unable to identify these snakes (yet). Any help would be appreciated! The shot above shows the markings clearly. Here are the head and tail:

 

We got about the same number of pictures of this snake as the one last night. Then this snake got tired and crawled away across the porch, around the corner and under the slab. I guess it knows it's way around!