I am now down to 3 hens thanks to a fox. My hens have not laid in about a month now and I have several questions. We live in S. Oregon at about 3000 ft and the temps have indeed dropped into the upper teens on occasion this winter. I do not supplement their heat with lamps mainly because we are off grid with solar power and gen. back up and my husband doesnt want to use the power. Some other chicken folks had said that adding heat lamps is actually not so good for them, but I have NO eggs. Have my hens had the eggs scared out of them by the fox attacks? Is the temp issue why there are no eggs? Would just a regular light bulb in the coop help this situation? Please advise. Any info is appreciated.