
Forget the combs and the wattles for a minute. On the picture of the crower, see all the saddle feathers that are growing down with pointy ends. Check your other chickens for the same feature. It is hard to tell, but the chicken to the right of the crower on the first pic, may not have saddle feathers.
I have read that non dominant rooster may not crow. No such luck with mine....all the cockerels crow all the time.