This AM when I went out to let my girls out (3 Barred Rocks under a year), one of them flew up into the air in the coop and almost made it over the wall. She struggled to fly up the screen, but didn't make it and fell back down onto the floor. My other two just went outside and when I peeked around to see her, she flipped over a few times in the shavings and then, came to a rest. I thought she had injured herself. So I went to get something to put her in, so the others wouldn't pick on her. By the time I came back, she seemed fine and was just picking around with the others, but still acting very scared of me. She is my one who isn't crazy about going outside in this cold weather, anyway and usually stays inside their shed, unless I bring them treats outside. I watched her standing inside the shed, a while ago and her eyes started to close for a little bit but as soon as I moved, she perked right back up again. She will usually take treats from me, but now, doesn't want to come near me. This is my first year with chickens, so I have no idea what is going on.