Yesterday I placed my leghorn mix in a coop with my Silkie roo, they were both scared of each other so they avoided one another. When I came home tonight my hen was dead and stiff on the ground with an egg on the other side of the coop. I didn't see any blood on either of them though. Is it possible he killed her or was it the flu or something? The day before I noticed one of her eyes had a dull look to it and it was kind of half way closed. The other eye was perfectly fine. Any ideas on the cause of death?