With negative temps at night almost every night since a couple days after Thanksgiving, and single digits most days, the only pens I am getting eggs from are the Minorcas and Buckeyes. Granted, it is only 1 or 2 a day, but it is better than nothing at all. We are looking at a high of 20 today that will feel like a heat wave with the sun peeking out too. My birds in the outdoor flock are even out scratching and moving around today. I say outdoor, but they have 2 coops they can go into as well.