I have water moccasins, rattlers, cotton mouth, king, black, green, rat, chicken and quite a few other snakes in my area. So far this year I've only killed 2 chicken snakes. A chicken snake can swallow a bird, mole or rat whole. King snakes eat other snakes but unforunately I killed the only one I saw on the property last year. I didn't wait to ID the fellow..my fear set me into killer mode before thinking if it was a good snake or not. The summer has just begun, I'm sure I'll see a few more in time. Just hope I see them before they see me.