One of my Orpingtons was dead in the nest box when I went out to check on them. Her butt area was all torn up and she still had an egg in her. She was acting normal yesterday and was roosting last night. If she had been egg bound wouldn't she have been acting different? This is the second hen we have lost that was torn up in the butt area. What could be going on? We have had hens for 3 years and this is the first set of deaths we have had. Any ideas?