In the last few days, when we go out to lock up the chickens there are 3 or 4 who milling around on the other side of the coop making distressed sounds and they are like they are lost or left behind. The rest are in the coop where there is light btw, (timer goes on before dark) They can be caught easily and picked up and put in with the rest of them where they are just fine. It's like they have forgotten how to go a few feet around the corner of the building and go in. They have had a light and all since it started to get dark earlier, so they should know where to go. Why are they now getting weird? Are they blind? Could there be something wrong we are missing? They are normal otherwise. Does the cold weather freeze up their tiny little brains? Is there something in their diet wrong? Do they need extra something to deal with the cold? Is there a disease they could have that would make them stupid? Should we make them go in sooner? That's like well, herding chickens. Entertaining to a spectator but no so much for the participants. They are still laying ok, we give them light from before dark so they can go in as it gets dark outside and get their few hours to make up for the change in light outside. I am worried, should I be? or am I just worrying too much. These are new chickens this year, the 'used' ones we had before these had gone thru a couple of winters and as such were survivors. They knew not to stay out in the cold. These ones I worry about.