Do hens suffer from winter depression? My 3 RIR girls are eating but just barely, they really don't want to come out of their hen house during the day. I have forced them out in to their pen, just so they move around more, eat and get some water. Temperatures have been in the high 20's/30's during the day and down to teens at night. It has been very cloudy during the day, not much sun light. They do have a lamp on during the day. Their eyes are bright, combs seem a healthy red color and they are just 19 weeks old. Thanks for any advice.