We have large rat snakes and black snakes. Everynow and then i see little green and grey ones. They are more then welcome in our yard.
Non venomous snakes are welcome at our house too, but venomous snakes call for complete annihilation. I told hubby if I saw a water moccasin in our back yard I may just napalm the entire lot and start from scratch... He thought that sounded reasonable LOL