I have 4 chicks almost 7 weeks old. I was going to add them to the flock of 2 hens this weekend. They're inside at night, and in a "playpen" all day outside, away from the 2 big hens. I let them into the main garden area late today to let them explore. 1 hen charged them (she can be aggressive and may go) the other ignored them. They looked pretty small, and I wondering- should I wait a couple more weeks? I've read that they should be middle size, not too small, or full size, to add to a flock. I have a RIR, 2 amber whites, and a barred rock chick/pullett. Thanks.... it's been a while since I had to do this....