You shouldn't have to worry about heat for your chickens (unless you add chicks in the winter) hens do fine as long as they have shelter from the wind.
As for your aggressive rooster: there is a rooster taming technique that is very successful. Pick him up and hold him securely under one arm, with the other hand gently force his head down so that it is lower than his body. Hold it there for about 30 seconds then take your hand away. Every time he tries to raise his head, push it back down. The training session can end when he pretty much keeps his head down continuously. You may have to repeat the process a couple of times, but I have never had it fail.
Is Woolley-Bully an Ameraucana?
