The one silkie I have that is obviously a Roo is 5 months old and has been crowing for a few weeks. His crowing is not very loud, will he get louder as he gets older? Also the crowing rooster is the poorest quality silkie we have, the only one that has no vault. Do the vaultless silkies tend to mature faster? No one else is crowing or laying yet. I wish I could tell the sexes of the others but I really can't yet.