Trevorusn
Crowing
Funny, I had the same idea about a SF cockerel I had last year. He was good size but let my ISAs bully him and he always preferred to stay away from everyone. Everything he did seemed, well, juvenile. He ran around a lot, showed very little interest in mating, and never attempted to crow. Sadly he was a great flyer and flew over my fencing to be snatched by a hawk, but I always did wonder if neurologically he was delayed, if such a thing is possible in chickens.