I had a BO roo that was about a year old. I usually let my chickens out for a couple of hours in the late afternoon. When I feed them I will call and they will come a running. I have to use a stick to shoo them away so I could walk. I fed them in the pen and did not see the rooster. I looked out the door and he was laying on his side with one wing spread. I picked him up and placed him in a cage but next morning he was dead. ( this was last summer) What would have made a simingly healthy rooster die like that. I don't want this to happen again.