It was kind of a muddy brownish color with no real marking per say. I was thinking rat just because they are common. But even small they have some type of markings, so now I'm not sure. Could just be a grass snake of some sort or maybe something along the lines of what you said. Either way I was happy I love snakes of all kinds!We have little Dekay’s brown snakes that live under our trash cans/in our flower beds. I just love them. I can’t tell the coloring of yours in the photo. But, they look really similar in shape. They stay very small, if that’s what it is.