Chicken novice here. From a local farm we bought what we thought were 6 crested cream legbar chicks. Well 3 turned out to be some sort of cross breed cockerels. We brought those back and now have three 21 week olds that are definitely crested cream leg bars. Suffice it to say we are suspicious of our farmer's ability to identify and sex chicks. Two of our leg bars have pretty large wattles and crowns. Are these cockerels?? We have not heard any crowing, at least... Thanks!