The OP said this:
I have a very aggressive rooster. I can't get near the pen. He flies at the wire. I can't get in to clean their coop. What do I do about this Rooster? Is there any way to calm him down? Any advice you can give me would be appreciated!!
You cannot change a rooster who is like that, flying at the wire is extreme aggression.
Temperament is a heritable trait, passed down the line. My sig line says "You don't breed stupid" which refers to this issue. I find the least intelligent roosters are the most aggressive, but they tend to pass on the trait, which is why I only keep non human aggressive males. Because of that, I have not had to cull a rooster for aggression in probably eight or nine years. Keep the best, cull the rest.
That said, people seem to expect roosters to act toward their small children like the family dog. Think about it from his perspective. The kid is small, loud, is jerky and grabby and makes him nervous. He may react out of fear to a small child. I do not consider that true aggression. The sweetest roosters ever will react differently to running, screaming kids. And a toddler is just the right height to lose an eye to a flogging rooster, so they need to be kept separate. My beloved Isaac was visibly nervous just hearing a neighbor's loud grandchildren through the trees but he would not dream of hurting me or any other human being so I never allowed kids in the pen with him unless I was holding him.
You can't train a truly human aggressive rooster, I just do not buy it. I've done it all and a really mean one will not change. If they're young, pre-mating age, boundary testing is expected but that's not flogging. Biting and rushing is what that refers to. Flogging is a ramp-up on the aggression scale. I just don't let a flogging rooster stay to breed here. Mine are easy to handle, don't bite and certainly never flog. I have two BR roosters, one each from a different heritage line, and a year old Blue Partridge Brahma rooster. None have ever flogged me.