TROUBLE WITH INTEGRATION

I've had good luck by putting the chicks in a wire cage/small pen inside the big chickens yard for several weeks. I used a large dog kennel 2'x4' covered in that plastic chicken wire to keep the little guys in. With a small coop attached to the door. There will always be some pecking order spats, but by doing this and waiting til the little guys are bigger, it helps a lot. Good luck.

 

Well wait until they are at least 12 weeks old though around 14 is better. I did it to early, went to check on them and had a dead chick. It's very improtant to wait till they are all around the same size. Your doing it right by letting everyone see each other. Then when you do let them out watch for to much aggression. Their will be some pecking, but as long as they aren't to bad, just showing the new guys where they belong you should be okay. If 1 or 2 of the older hens or roos is to aggressive them seperate them for a day or two and them put them back in.
I have introduced 3 sets of chicks into already established flocks this way, and in a month or two will be doing it for another few batches. Also maybe give them some free ranging time together around the 10 - 11 week mark supervised of course and let them all get to know each other better before you make the transistion.