Last night, Mr Raccoon got into my coop for the first time. He got my rooster and three hens, one of which is still alive, although I don't know how. Her comb is gone, her scalp is gone. Her eyes are closed but seem to be there, and she is drinking water very slowly and making little sounds. I can't see any other injuries to her, but the head wound is horrible. Her skull is exposed. Is it mean to keep her alive? Dumb question, but how do I put her out of her misery? We don't eat our chickens, so I've never culled one before.