I'm new at this so please bear with me! The chicks came last Wednesday and are doing well. They do keep trying to fly up out of the brooder. Is that normal? These are 4 chicks as family pets/eggs. We're trying to handle them twice a day but they are still a little skittish. I found that bringing my hand low and scooping them up goes over better than grabbing from above. Any other tips? The brooder (see photo) seems large right now -- and I can add another level of height. How long can they stay in there? Thanks!!