Since it got fairly cold here a few days ago my chickens are avoiding the outside at all costs. I keep their water (on a heat base) outside, close to the pop door and feed inside. I see them go out to get a quick drink now and then but, other than that they don't venture out at all. They have a covered run but, we have no "prevailing" wind direction here so, even having one side protected from wind doesn't help that much. Even when I open the run to let them free range they head out for no more than 5min then back into their coop. Is there any way I can encourage them to come out of their coop more? Besides tarping their whole run to close it off. Should I worry about it at all?