if it is over five feet long it probably would be a ratsnakeAnyone,
How do I identify a racer from a ratsnake in the field without picking it up?
Don
Ratsnakes have keeled scales which makes them shinier and rougher to the touch.Ratsnakes often have white showing between the scales which is skin,this shows more the better fed they are at the moment.Ratsnakes as you say tens to climb a lot,racers are seldom found more then a couple feet off the ground.Racers are very fast and will usually beat a hasty retreat whereas ratsnakes more often rely on camo and will freeze.Black isn't very good camo to me but they think it works.
Once grasped a racer will start tattooing very intricate patterns all up and down your arm and even your face if you let him get that close.A ratsnake if it bites at all will usually calm down quickly.Racers have a dull look due to smooth scale and their belly is solid grey,a ratsnake has a mottled cream and grey splotched belly.both have white throats and chins.ratsnakes are much more common in my experience then racers.racers will be found more in fields and under things in the heat of the day,a ratsnake will be in a tree or in a hole in a tree.The head scalation is also different as well as the shape of the head looking down on it.Googling the separate snakes may yield pics to illustrate this.