Hi! I am the proud new owner of 14 chicks! The first batch of eight are about 5 weeks old and the second batch of six are about 3 weeks old. The older batch have been outside in their new home for almost a week and are doing great. Will I have problems when it comes time to introduce the younger group to the others? Or are they close enough in age that it will not matter? Their house is roomy and we are still building the outside run. Thanks for any suggestions. I also am not sure what they are, can anyone tell me? I got them all as mixed pullets from TSC, except for the two straight run Brahmas. When will I know if my Brahmas are hens or roos? Thanks!