Funny!!! I am new at this too. This website has saved me. We moved into the farm last year. My husband's mom died and we moved into her 7 acre farm with 25 chickens. I loved it and it came natural because I love animals. The girls started laying less and in order to keep our farm tax we have to make sure we are selling eggs. We bought 36 babies this spring and they are now about 12 weeks old. My husband made a huge yard for the new ones and we just put them together. Everything seems to be going fine because the large hens are too busy eating the new grass and stuff to pick too much on the little ones. I lost my roo last week to a hawk so I think that might be making it easier too. I think you'll be okay with integration, just find something to keep the girls busy. I heard that putting a whole cabbage in keeps them busy and I also heard and I did this myself, put a small tote or box in that the babies can escape into that the hens can't get into. Good luck,
J