Thats good to know, we were actually wondering how and when to integrate younger birds into a flock. Are most breeds pretty compatible with one another? Or are there ones we should stay away from if we have a mixed flock?it's a bit touchy to add to your flock unless you can keep them separated until there about the same size. I found this out with my pullets last year ( younger girls) thank god it was warm out and I was able to add a dog house in my pen and separate with fencing the older and younger girls. They had to be separated for 2 months, what a pain. I finally I was able to merge them in the yard and the pullet could run around and get out of the big girls way. But when they went back they had to be separated again for the night. Slowly we got the, integrated but I had to give 2 girls away as they would not for no reason accept them.i have learned more now, got more pullets coming, and plan to do the same again. I tell folks, if you want 10 chickens eventually, get them now. Make it easy on your self lol. At least with all the land you must have the ones you add to your flock will have more room to run and get away from the big girls.