Okay, I have a broody hen who could probably hatch an egg or two. I have no rooster or incubator. I would like to buy some fertile eggs and let her hatch them. How long does it take? Does the Texas heat present any problems or does that just make it better? Would the chicks be safe or should I use my isolation cage? What should I do if I get a rooster? Since I'm a covert urban outlaw with 7 hens instead of the 2 allowed, I can't keep a noisy roo.