I have no idea what happened to her. Went out to look in on my girls and she was on the floor of the coop kind of wedged into a corner, dead. No marks on her at all, no blood. What could have happened to her? She was fine this morning. I'm pretty sure she laid an egg early this morning, she was eating well, no signs of anything wrong. She's just 29 weeks old. Should I be worried for the other three? Is there anything I could have done?