Thanks.
Yes, the cockerel has started to cross the line between "attitude" and aggression. He used to back off when I gave him the stink eye. Now he only backs off if I have a stick with me. Even then, if I have to do anything in the pen so my attention is distracted, he will attempt to flog me. Every couple of days he manages to connect. Today he hit me in a place that still hurts several hours later. So he is on the dinner list and his offspring in the incubator are on the watch list. Attitude is welcome. Aggression against people is not allowed. The other four cockerels are just fine. This one is trying my patience. He will make a great stew.