I am brand new at chickens. I've read like crazy and tried to do "all the right things". Today, one of my red sex link hens was in the nest, tail out, head toward wall. I thought she was trying to lay an egg. She wasn't making any sound, so, I assumed she was fine. This was about 3:00 p.m. I went back out about 45 minutes later and checked the henhouse. She was in her nest, dead. Rigamortis (sp?) had already begun to set in. One eye was closed, one not completely, but she was dead. There was leakage from her vent that looked like an egg that had broken inside her and was leaking out. What exactly happened? Can anyone explain? Was there anything I could have done to help her? To prevent this? Thank you so much for any information you may be able to provide.