I live in ontario canada, and its bitterly cold. (-20 f!) My chickens stopped laying pribably 2 months ago....however 5 days ago I found an egg. And every morning since there has been another. And then this morning there was 2!! What the heck? We are using a heat lamp to keep them wsrm, it isnt overly warm though. Its got a red bulb, could that be enough light to stimulate egg production? Im definitely not complaining, but I also dont want to be causing my girls extra stress. I am quite happy to keep them warm and fed and happy, eggs or no eggs.