I will read through some of the other threads on this topic but wanted to put my situation up and get feedback; Have a 2 year old bantam hen who used to bully everyone we put with her so we have left her solo last summer. Started a new flock of 4 hens (still debating on the one silkie but no fertile eggs she is probably holding off to lay in the spring), oh and 2 guinea fowl. The easter egger (named Lavender) rules the roost. Purchased a 1.5 year old Polish roo to actually start growing the flock. Multiple attempts at introduction has resulted in Lavender drawing blood from the roo and older bantam, and old bantam will draw blood from roo if left together. Because its so cold out the bantam and the roo sit by themselves inside the house. Most recently I left everyone hungry for a day and the next morning before sunrise added the two outcasts to the coop with lots of food and treats for everyone...that lasted 5 minutes and then the screams and blood started. I'm at a loss and with 4 feet of snow on the ground I don't have a lot of options until spring but the outcasts need to get out of the house.