Is it OK to keep a rooster separate from the hens and only introduce him when fertilized eggs are desired? If so should he be kept in a parallel run to the girls or keep them out of his sight so he's not frustrated he can't be in with them? I haven't done this yet and don't have a roo since I don't know if this is a good idea or not. I was just wondering if that would be cruel to the roo since chickens are pretty social critters.