Hi, I have 4 silkies, and 3 turned out to be roosters. I cannot have rooster in my area but they are 3 months old and only one of them is crowing. The crow is not very loud. If I keep the roosters in their own pen (separate from my hens), will they all crow? I heard that sometimes only one will crow if it is the dominant one. Also will the crow get louder with age? I really don't want to give them away, I raised them from chicks.