Identify Snake Florida

[Pareeeee]

I take back my suggestion. Although the head shape and even some of the markings look a lot like a Cottonmouth I'm pretty sure I was wrong now.

I think everyone saying Dusky Pigmy Rattlesnake is right. Take a look at what I noticed about the marking on the back of its head:



Also note that OP's snake has small spots just like the Pigmy Rattler (you can just make them out, possibly the snake was going into a shed) which is VERY different than the large markings on a Cottonmouth: