@5boys
Hi again
I've had my current flock for nearly 4 years but I had a previous flock about 10 years ago that unfortunately got picked off by a fox.
Hens are more likely to go broody in the spring and summer when conditions are best for raising chicks but it is not totally unheard of for a hen to go broody in winter, just much less likely.
At the moment I actually have several flocks...some free range and some are in pens. I like to let them brood within the flock if at all possible as this allows the hen to maintain her position in the pecking order and the chicks get integrated into the flock from day one. That said, I believe that broody hens should have their own private nest wherever possible so that other hens are not climbing into her nest to lay more eggs in it as is often the case when hens are penned up. I have an old cabinet in the hen house that I move the broody to once she is committed to being broody (usually I wait until she has set on the nest for 2 days and nights to show commitment). Use old drawers for nest boxes, so it is easy to pick up the drawer and place it in the cabinet. There are holes drilled in the door for a little light and ventilation. Once she has settled in the cabinet and is clearly still broody, then I give her the eggs I want to hatch. I let her out once a day for a broody break to eat poop and dust bath whilst I do chores and then fasten her back in once she is ready to go back to her eggs. For the first few days after moving her into the cabinet, she goes back to the area that she was originally nesting in before I moved her, so I wait for her to settle and then pick her up and move her back into the cabinet. After a few days, she figures it out and returns to the cabinet herself and I just have to shut the door. The advantage of this system is that she isn't disturbed by other hens whilst she is brooding. The other hens are not able to lay in her nest and there is less chance of an egg or newly hatched chick being trampled and squashed. She still remains part of the flock though as they see her each day during her broody break. For me it is the best of both worlds, but it does unsettle some broody hens being moved and can break them of their broodiness if they are not totally committed. The other option is to leave her in her chosen nest and mark the eggs you give her to incubate and remove any other eggs that are laid into the nest after that on a daily basis.
In a free ranging environment, the hen would usually make her own sneaky nest away from the main nesting boxes where only her eggs would be laid and incubated. If I have hens that do this I will usually move them into the safety of the cabinet in the hen house as there is a risk of predators finding them outside. If they have been very sneaky and they are in a location where I can't get to them, I make it as secure as I can and leave them to it.
One of the most important things I would say is to treat their nest for mites before you set them. Mites normally feed off chickens(blood suck) at night whilst they roosting and hide in the cracks and crevices of the coop during the day. Broody hens are a 24 hour banqueting opportunity for mites and I have seen nests get so infested with them that the hen had to abandon the eggs when they were a few days off hatching and you could see the mites crawling all over the eggs. Having access to a dust bath is therefore important for the broody, which she often cannot do if she is confined to a cage and dusting the nest with DE regularly to keep the mite levels down.
Hope all of the above makes sense. If you are in the northern hemisphere then it is unlikely that your pullets will go broody before next spring unless you live in a tropical climate.
The one problem with broody hens is that when you want one, it just doesn't happen and then just when you give up hope, you end up with 2 or 3 of them fighting over eggs. Broodiness seems to beget broodiness!
Regards
Barbara