Some boys though calm down after the initial hormone rush, at least in the "attacking the hens" part.
However, I am not so lenient with attacking people, but I might give it a month if he is your only rooster.
We currently have a horrid d'uccle rooster that we have put up with because 1. He is the only d'uccle rooster we have, and we made a good deal of money selling fertile eggs and chicks and 2. The second that the little d'uccle cockerels are older and we are not so worried about loosing them, we will kill the mean one, but we do not want to kill him until we know we have a replacement.
Back to leghorns, mine aren't laying yet..unless their eggs are sneeking into the egg basket as d'uccle eggs (which is possible). I will have to look more closely. BUT, my dark brown pullets are NOT colored up. My two RC white leghorns are very red, so might be laying.
My three dark brown roosters are nice at present.
As to flock dynamics..right now it is fully by age. As well as when I put them into the main coop.
I am in a bit of a panic right now....I thought I was going to have a second coop before winter, and the spouse threw a fit....and I am not sure how my last set of chicks are going to fit into the same coop as all the others without any issues.
I thought I was gonna have more space, I don't....... Not sure yet what to do.
On the other leghorn thread, I asked about the SOP. All of the SOP stuff I have seen, it looks like the ideal Leghorn is supposed to have a shorter back than mine do.
Anyone have any comments about that?