Keep dog proof traps nearby ,set at every location on the outside of every corner ,that gives the coon something to eat and occupy his time then he reachs in and is caught and will be theyre in the morning, I dont know the specific s in the game laws of every state about protection of your livestock so use your disgresion, but im all about coon and possum elimination around my coops,if you catch and eliminate the raiders the chickens will be safer.