Hi all- Over the last several weeks I have noticed a growing trend with my hens. They started "staying up late", scratching around in the yard way after dark. I thought perhaps they were responding to people noise- cars pulling into the dirve, voices etc ... or maybe ooutdoor lights. However, I can sometimes look out the window well after midnight and see them coming and going from coop to yard and back. This morning, I had to get up early while it was still dark. Much to my suprise 8 out of 11 girls were laying together on the ground, outside in the yard sleeping. WHAT GIVES? I reluctantly got dresssed and went out to check on them. No apparent issues. The 3 left in the coop were sleeping quietly. The others piled in when I opened the coop door. As soon as I left- out the door they went again. It is COLD here, probably in the 20s overnight. I feel they are very unsafe sleeping outside. I have electric poultry netting but no roof on the yard. An owl would have a feast if it found them sleeping on the ground, right?? My coop is roomy, has windows (which I have closed due to very cold weather), lots of roosting space, 4 nest boxes, food/water inside. Concrete floor with lots of dry litter. There are no roosts outside in the yard. Nothing to sleep on but the ground. Any thoughts?