Hello I need some advice on one of my bantam hens. Day before yesterday I let my bantam flock out of their coop to get some outside time. It wasn't very cold, but kind of windy and the sun was shining, needless to say I got busy doing other things and got them in kind of later than usual. By that time it had gotten very cold and very windy but it wasn't dark yet. They'd been outside for about 2 or 3 hours. When I got them in their coop I noticed one of my hens was acting strangely, "gasping" (opening her beak to breathe and extending her neck as she did), not moving around much and she was fluffed up, she keeps one eye almost closed. Her feet were also very cold, I got her warmed up and still as of today she's still acting the same. Hasn't been around any other sick birds and happy and healthy before I let them out. I'm hoping someone knows what's going on with her. Any ideas would be very appreciated.