This is my first time posting on BYC but I think you guys might be able to give me some advice. We have an exsisting flock of 3 hens that are about a year old now. We decided to increase our flock by purchasing six more little ones from the tractor supply store. We bought the chicks in early March so they are around 7 weeks old now. Our exsisting flock are Rhode Island Reds, and our new chicks are: 1 Rhode Island Red, 2 Brahma Whites, and 3 Australorp Blacks. Our chickens are partial free range, we let them out of their fenced area when we are home or are spending time outside in the garden. To introduce our new chicks we added on the the old coop, and added another small section of fenced area to the exsisting fence. To separte the two flocks we put up chicken wire between the new addition and the old part of the coop. The new chicks have been in their part of the coop and fence now for about a week. We know for sure that the new Rhode Island Red is a pullet, but the others are still a question. Our guess right now is that there is one Australorp rooster and one Brahma rooster. The question I have about this is: When and how should we put the two flocks together without the separating fences?