I can't speak for that particular hatchery but I suspect a lot is going to be down to the individual bird. I have two full brother roos (same parents - both calm birds, same hatch, raised identically) and they have very different personalities and very different maturation phases. One had a hormonal phase that lasted about two weeks and consisted of a few nips before turning into a calm teddy bear. It's almost like there was no phase. The other turned into a big ball of anxiety as he tried to step into the flock leader role, bit more often and harder, has whopped my husband pretty good a few times, and is still bitey but in a nervous/fear sort of way. So if I can get that big a span of personality from brothers, I don't know that you can predict much just knowing the hatchery.He really is so sweet right now, but am scared of the almost inevitable puberty turn that it seems like most people experience with Roosters. What’s been everyone’s experience with Murray McMurray Ameraucana (Easter Eggers)? Aggressive? Non-aggressive?