I've killed 16 copperheads so far at my property. One had a dozen babies in it. So I guess it's 28. I've owned the 27 acres for about 12 years. One was behind the refrigerator in the pole barn. It bit my dog on the nose. Had to give him some Benadryl because his throat started swelling up. I almost stepped on one. It was laying on the gravel road in the evening. I saw it coil up and jumped to the side. It just missed me by a couples of inches. I'm going to plant some lemon grass this spring. I spread some repellant around the pole barn after the dog got nailed.