I just got 7 chicks today. I have my brooder in the small coop (8' x 6'). The brooder doesn't have a top on it, but it has a light and is warm. I have some older chicks in the coop outside the brooder. I have a light on for them too, even though they don't need it now. If I turn it off they jump in the brooder so it is easier to leave them with a light of their own. Anyway, I put the chicks in the brooder today and one of my 8 week old chicks jumped in and pecked at one of my new chicks. That tiny baby jumped up and pecked at the agressor's face. I was surprised. Do you think that chick thought its mama was bringing a treat? Or, was it saying "Don't pick on me!"