What a bummer - my dog had been so good with ours too and I came home the other night and found one half eaten in her "spot". dang it - I went out that night an bought a dog collar containment system, installed it and I have great satisfaction when I hear her yelp and run away when she gets within 10 feet of the chicken coop! I love all my critters and hopefully the collar will keep her away from the ladies!
