Also, my husband has a co-worker that has been raising chickens for awhile, not sure how long, but at least a few years. He has an awful lot to tell my husband about how we should be raising our chickens even though he admits that he does not like his chickens and actually has a woman who takes care of them for him (he has a small farm). He seems to be quite adamant that some of our chickens will get aggressive and start fighting and will probably kill the less dominant chickens. He also asks all the time if our chickens have started trying to peck at us and get aggressive towards us. Our chickens are 6 months old now and aside from seeing a couple of them stand tall and puff up their feathers at each other and the occasional peck over who gets the first treat we have seen no aggression in our chickens. Is this something we should expect or does this have more to do with the environment they are being raised in?
We have one who is the leader of the flock. She calls the rest in at night and even checks the run before she goes in herself. She is bossy, but we have never seen her aggressive.