integrating flocks

[Tenmore]

I have 12 hens to which I want to introduce 15 7 week old pullets. Pullets have been out side in brooder coop. Since day one with access to their own run for 4 weeks now. Hens all free range all day which gives them access to the pullets run. When can I turn them in together?

 

[Tenmore]

here you can see that when the hens are out they have access to pullets and this coop sits 7 ft. from main coop and main run.

 

[DanvilleHealer]

I was wondering about the same issue. I have two four year old hens and 8 new babes that are currently 7 weeks old. Would it be ok to let them into the same coop and run? The older girls free range during the day now and was not sure if I could put the youngsters out with them. I would not want the little ones to free range yet, as I would prefer them to be full grown. Is this a good idea?
Any input would be appreciated.