Hello everyone! I'v only been a chicken mom for about 4 months now. I got our four hens when they were about 5-6 months old. They haven't started laying yet but I'm not too worried about that. It winter time and I live in Alaska where we only get a max amount of 5 hours of day light. However, as I was cleaning out the coop today they were in the run eating the snow that had fallen in while I was cleaning. They were fine the whole time and then they randomly all froze and started purring. I thought they were looking at me but when I moved they didn't follow. Two where standing on one leg and the other two just froze where they were. Two were purring back and forth and the other two just stood still. I look around and there was no predictors that I could see. We have many bald eagles but I didn't see any around. Why would they all stop and star and purr? Thank you for your suggestions and answers!