I have recently got into raising backyard chickens and purchased 14 chicks. As it turns out 2 of those 14 are cockerels and are going on 2 1/2 months old. One is a BR and the other is a RIR. Will it hurt to keep both of these cockerels/roosters together with 12 hens as they get older. They are together now and are used to one another. If not, what can I do to separate as far as pens/ another coop? I just don't want any dead chickens due to my negligence.