Let me preface by saying we have had chickens for three years. They have 1.5 fenced acres on which to range. There's an empty grassland lot on one side and field on the other two. They are out sun up to sun down. We have never lost a bird. This week, we lost two- one on Sunday and one on Monday. Both happened during the daylight hours while we were away. The odd thing is, save one part of the wing missing/broken there was nothing eaten off them. The second one did have the neck sliced open also, but nothing else. We have two bichons and a cat, but they are afraid of the chickens and the girls stand up to them. I'm at a loss?? What kills just to kill?