I would like to get a few more chickens for the winter so my girls will have a little more to keep each other warm. I saw a posting on Craigs list today, for some 9 week old Buffs. The chickens that I currently have a about 20 weeks, White Buffs and Americanaus. Are there things I have to take into consideration here? Can I introduce the 9 weekers right in with the older ones or are there going to be pecking issues? I am thinking of getting 2-3 that would give me a total of 8.