I recently lost over 1/2 my flock to a fisher or mink. We're thinking about ordering new chicks, but space is limited for us. I'll have brooder space for them for maybe up to three weeks, but then I'm not sure what to do. How soon can I introduce new chicks to my bigger guys? What's the best way to do so? I haven't had any noticeable trouble with bullying or pecking orders, but everything's been all shaken up, and I think all my roos are gone (still unsure on one of the Wyandottes). Anyone have any suggestions on birds that have worked well for them in the extreme cold? I was really pleased with my barred rocks, and my black giants, but I'm open to suggestions, if I'm ordering new.