I have a young RIR hen, about 9 months, who seems to want to brood outside under the rabbit hutch. It's so cold I have taken the rabbit onto the front porch, but this hen has made up a nest and laid an egg there for 3 days now. She then goes for a snack and comes back to find the egg and set on it, which of course I have taken. It's 15 degrees here. I know chickens are not bright, but there are enough nesting boxes for all of them. Why would Henny want to be out there in the wind? She is too young to hatch young anyway, isn't she? I thought next summer I would let a couple of the girls brood, as my roosters have good behaviors I would like to foster in new ones.