we have 3 roos and 5 hens.. only 12 weeks old.. but already i am thinking of mating and adding to the flock next yr..they are in a coop and large run. why do you take your eggs and incubate them.. and why do you keep everyone seperate.. babies from chickens.. i was planning on letting the hens raise the babies.. do they get hurt by other hens and roos? my nesting box is comunal sp. wont all the hens hatch the eggs?