I have 6 pullets that are 6 1/2 weeks old. I couldn't resist buying 2 brahma chicks. They are 1 1/2 weeks old.. When is it safe to put them altogether? Right now their cages are beside eachother so they can watch eachother but we should have our coop done tomorrow and the big girls get to move on up. I'm hoping to put the babies in the coop with the other girls when they are 5 to 6 weeks old.. Does that sound right???