Hey all not new to the site but new to posting. My wife decided to adopt a rooster without asking me. I did everything i could think of to introduce him to them. He was inside for a week to make sure he didn't have anything wrong with him. I put him out in a cage for a week so my hens could get use to him. They still tried to fight him but not just one different one every time i check on him. They settled down so i started letting him out for a couple times a day and thought they were doing good then i went out the other morning and found him dead and he had no marks on him before he died. Why you think they killed him. Forgot to add they are a mixed flock and he was a bantam.