I am new to chickens, well since I was a kid when my parents and grandparents had them.... So anyways, I have this White Leghorn that doesn't sound so well for the last week. He chases the hens around, eats, drinks, pretty active, he just doesn't sound right. I do know he and the RIR/Buff Orp Cross roo fight from time to time. They are separated now with their own flock of girls at opposite ends of property? Any ideas of what is going on with him?