I already have three 4 week old chicks and the hubby and I are wanting another three. Our local feed store will have 3 day olds available on Friday. I mentioned to the store owner that I would be there first thing Friday morning to pick up three more and he strongly advice that I don't. He said the big ones will kill the little ones unless I put them in a different brooder. I am thinking of moving the bigger ones outside to the coop so I can place the newbies in the brooder. My concern is how can I introduce the newbies to the older ones while still keeping them alive?