Hi 715,
I'm a WI newbie (8/10) and have 2 hens that will be 1yr end of March. We didn't get any eggs once the snow flew (Dec 10) until I put a lite in the coop (solar-approx 4-5 hours add'l) a couple weeks ago AND I also had up'd their protein intake. I used cooked eggs, chicken, other left over meats, even bought them some wax worms (but only once, $$). I think it took less then a week, maybe 3 or 4 days of add'l lite to produce eggs again. My girls had free ranged daily Aug until that Dec 10th storm and after that kept themselves cooped until a few days ago when they could see the bare ground in a few places. Even then I had to initiate their first romp. Now we're stormed in again, oh well .... it too will pass. I wish I had put the lite in their coop right away. We missed not having the eggs. Our 'Butterscotch' (Cinnamon Queen) even decided to molt during the last week in Dec through Jan. She was looking pretty rough, the coop's a stand alone w/o heat, 4x8 and 4.5 to 5.5' tall. We got quite a few days and nights of zero and below. She held her own and is looking good now, thank goodness.