They usually don't start kazooing until puberty hits, but I've had some less than a week old chest-bumping each other in the brooder tub. The batch I have with hens and a capon don't do that, because momma/cnanny won't allow such rowdiness. Cockerels also tend to stand up straight and look around if something catches their attention.What are the behaviors, any crowing actions? I notice with my roosters that I raise that I see them acting like roosters. It is adorable!!!!