I was just sitting in my fenced-in chicken yard with a chicken on my lap when ten chicken heads all turned and watched a 6-foot long black rat snake slither through a hole in the fence and immediately out a hole on the other side. The chickens all went over to watch where it had gone out the fence. I know snakes will eat eggs but my chickens aren't old enough yet to lay eggs. At 15 weeks, should I worry about the safety of the chickens if a snake gets into the chicken house when the chickens are penned up at night? The yard is 20 X 20 feet so the chickens would have room to move away from a snake if they were smart enough (also in question). (I will buy a couple minnow traps and try to trap it and any other snakes before my chickens start laying eggs. Right now I'm worried if the snake can harm confined chickens.) What about if a snake was hiding inside the chicken house at night and the chickens can't see to get away.