We would like to get our hens to hatch their own eggs. is there a way to do this? Do I let they accumulate a clutch of eggs? is there a particular time of year to begin this? and last question...if they don't sit on their eggs and go broody, how long should I leave them in the nests and since it is winter her in North Geogia and maintains a pretty cool temperature, the eggs would still be able to be eaten for up to a couple weeks?