Some of our dominant hens have spurs, only small mind. Except a very nasty RIR who has 1" spurs needle sharp which have to be trimmed regularly -lays quite well though.
Often only the dominant cockerel crows, the others are not allowed to without a fight ensuing. But I have noticed if different cockerel breeds are mixed together in the same run it's the dominant cockerel of each breed which crows. So there may be several crowing in that case. Our latest didn't crow when we got him. Took a few days to realise he was now master of his domain and started, rather badly but getting better. He will never outcrow the Wyandottes!