I have had no issues ever with my Rhode Island Reds. I think the hatchery ones may be more aggressive. My birds are pure (heritage). Only once I had a young Rhode Island White male that turned out to be aggressive. His problem may have been because he was getting beaten up by the other males in the bachelor coop and pen he was in. I moved him out and while he was recovering he was ok but after recovery he started to jump my hubby and I. A fellow was looking for a Rhode Island White male for breeding so I gave him to the fellow and told him about the aggression. He didn't seem to care.