Do NN's mature more slowly than other breeds? I have a NN that is about 6 1/2 months old that has never crowed and has never shown any behaviors of a rooster until last night when I seen him mount another NN hen. His comb & wattles are slightly larger than the hens but near as big as some that I have seen on here. I know silkie roo's are slower to mature but they started to crow at 4 months old. This guy/girl still hasn't crowed so I was wondering if they are slower to mature than other breeds? The hens that are the same age are laying. These chickens always keep you guessing, don't they!!!