I have 38 of my own chickens (29 hens, 9 roosters...we're slowly whittling down our terrible odds from a straight-run order in August--they're 20-weeks) and just bought three new ones right around the same age from a lovely woman who kept a total of 5 birds in a suburban backyard. A Welsummer (laying), a Cream Legbar (not laying yet) and a Gold-Laced Buff Brahma. Day one, I had them all out in our 15,000sf pasture together (they were assuredly healthy), and the Welsummer and Cream Legbar held their own, but the Brahma was getting chased and tormented mercilessly! Finally, I put the new three in my small coop w/attached run that is still within the inside of the pasture. All the chickens can see and smell and hear each other now. What's my next step? It's been a week tomorrow. Am I just going to have to keep these two coops going all winter or do you have any tips for introducing a meek, mild, and BIG hen to the flock? She must have a bullseye on her b/c they ALL went after her! Even my sweetest, kindest hens! Here she is--I'll post a pic.