we have 10 hens , mixed breeds, and 1 rooster. The rooster is obviously doing his job with most of the hens. I am going to try to let one of the more broody hens sit on2 of the eggs from the hens that I know have been taken by the rooster. My question is how long should it take to hatch the eggs, and if this is even possible with out an incubator. Since it is summer I figured the chicks would have time to grow before winter sets in.