I don't know if one of my hens has the worst mothering instincts or what, but...one of them has got into the habit of laying her egg OUTSIDE in the covered run. It's 20 degrees out and they have a nice warm coop with nest boxes, which the others have so studiously decided to use. My question is, do I just humor her and put a makeshift nest out there? There is nothing wrong with my nests from what I can tell by reading other posts on the topic. She's been doing this for weeks now, so it's not just a newbie thing.