I went out this morning to check on my chicks that my hen hatched yesterday. There were 3 yellow chicks and one black chick. There was one chick dead with a missing leg and another one crying and when I picked it up it was missing a leg too. My hen is free range but I felt I needed to put her and her new chicks in a pin to keep them away from predators. I think a raccoon or something must have gotten under the pin and tried to pull them through and tore their legs off. I don't know what to do. Should I leave the one legged chick in with the other two and the hen or take it out???