No crowing no spurs
This girl/guy hatched out in March
I thought the reason he/she was not crowing was because the other roo in the pen was the head roo.
Wanted to add this roo is the other in the cage with him/her he crows and he is the same age.
Many birds, especially silkies, mature at different rates. Most breeds would by now have prominent spurs and be crowing, but a lot of silkie males won't get spurs for quite a while and I've had some not crow until nearly a year old.