Okay so I'm new to this site an all but I need a little help. I have a chicken that is bullying all my other four chicken and my turkey. She is actually a newer chicken to our flock but we got her two years ago. They all have been fine since a few minutes ago. My Leghorn and my Rhode island red + Barred Plymouth cross just randomly started fighting. They are free range and they are always in my gardens. My cross breed is alot fatter then the others i noticed too. I tried separating them with food but they went at each other again but fiercer. Now I have my Leghorn in my house since she is bleeding and my cross is isolating herself from everyone else. What do I do? I know none of them are sick since we give them stuff to prevent it. Why would they start randomly fighting?