Bighorn is right, poisonous and constrictors will not be found in the same area (constrictors live in my FIL's yard, no rattlers or vipers ever in there)
I"ve moved a couple of snakes for people who dont like them - mainly constrictors (this is despite telling them of the benefits of having them around relatively nearby).
Moved a viper out of my FIL's garage (outside the yard). Grabbed it behind the head, held its tail, took it 200ft away from where he was, then let it go. Didn't hang around to see where it went, if they get annoyed with you, the viper will chase you around a bit lol.........(this one didnt fortunately)
Wurz