I tried searching but couldn't find anything other than general info about CRD. I have a BO Rooster hatched late March/Early April (got him in a trade) lost all other chicks but him and an older Pullet to CRD (the pullet never showed any signs) He fought hard to live and overcame the disease. I kept him alone in a tote in the house for a long time until I was sure he was free and clear. He did take much longer to feather out than other chicks about his age. He has yet to crow and is very obviously a rooster. I am wondering if the degree of CRD he had affected his crowing ability? I am also wondering, since I plan to keep him as part of my BO Flock, if it is possible that it could affect his fertility. He is totally healthy now and is a big healthy rooster.