A Copperhead will jack you up! Their bite will kill a chicken, dog or any other smaller critter, and they are very foul tempered snakes. I had one chase my tail end half way up the path back to my house when I was a kid. Rat snakes, corn snakes, king snakes, green snakes, are all good, helpful snakes. Copperheads are nasty, dangerous, and they are easy to provoke, meaning that if you bump one, step on one or even wake one up, you are liable to get bittten. Call animal control if you dont want to deal with them, but around my house, I always kept a 22 loaded with snake charmer ammo, just for them and water moccasins. Good luck, and if you decide to relocate them, be sure that its not near folks who are unawares.