I live in orlando and the overnight temps have been in the upper 70's to low 80's. I have a batch of cornish x coming in two weeks. Do I need to have them in a brooder, or can I have them in a seperate part of my chicken yard without a light source. I would like the old ladies to get used to the new girls so that when the size difference is not so great the transition will not be so much fuss. I have also heard of people building essentially a tomato ring for their little ones to go to when they are getting picked on.The size of the fencing will allow the babies to get away from larger hens. What age would you think that this is possible? One more question. I want to free range my cornish x. At what age will they associate the coop with sleep and put themselves to bed? Thanks.