No one is crowing yet and no spurs yet either. A couple of the redheaded ones ar just way bigger though so I'm just really confused on them.I think they would be crowing already if they are 10 weeks old. My easter egger looked a lot like the ones in your photos at 10 weeks. In a week or two their muff feathers will start fluffing out. I know this probably doesn't help much. Good luck.