I have hens from 1 1/2 years old to 3 years and just acquired 2 Light Brahma pullets and a rooster (who was supposed be another pullet!) So far he is not mean and he and the 2 LB are still separated from the flock. They are about 5-6 months old. They can see eachother but are not in direct contacts yet. I am concerned about the older hens tolerated the roosters "affection". Any advice?