I noticed one of my 1 year old hens puffed up, standing quietly in the laying box last evening. She had fecal matter on her bottom. No other symptoms. This morning around 6:30 am I let the ladies out into their run. All my ladies acted as they normally would. To tell you the truth, I couldn't tell which one had acted oddly the evening before! I came home just now to find her dead on the coop floor . Thankfully, she was not eaten by the others. There is no sign of injury. She appears to have died some time earlier today, as she was stiff. What could have happened?? I dont know what I should do?? Please give me some advice. I have bagged the body...do I throw it away?