I let my birds out this morning and there didn't seem to be anything wrong with any of them. After they were taken care of I went fishing and just came home to my dominant roo picking at the body of one of the other roos. All the other chickens were staying far away so even though I haven't seen my roos fight yet I'm thinking the dominant one killed him. What should I be looking for to determine cause of death. I'll post pictures in a follow up post because I have a slow connection.