I am new to raising chickens. I have 6 5-week old Orpingtons that have most of their feathers, definately one is a rooster. They are outside during the day and in their brooder at night with a light on a small section. I also just got 3 EE's that are now about 2 weeks old. They are in their brooder full time. When can I merge them with the older flock? I would like to put them all in a brooder together and just put the older one's outside during the day but I'm not sure how to merge them together. Any suggestions? Thanks.