I am really new to this so please excuse me if this is a stupid question. I picked up some baby chicks at the feed store, just to have for laying hens. There were barred rock, rhode island reds, and golden sex linked. I bought the pullets. They are all now three weeks old and doing good but I am noticing that the golden sex linked chicks don't act like the rest. When I put my hand in the brooder they actually will run at my hand and peck at me. The other breeds just stand back and watch. Is this a sign that they will be aggressive chickens? If babies act like this what will they do when grown? I keep food and water in front of them so it isn't just excitement because am feeding them or something like that. If they are going to be mean, I won't want to spend a lot of time raising them, will sell them off before I have so much invested. Thanks for any advice!