I have a rooster and some hens that I just got a few weeks ago fully grown from my inlaws, so I am really new to this. This morning when I was out caring for them they all seemed fine. This afternoon I was out there checking on them and one of them was sitting on the ground kind of funny. She had one of her wings spread out a bit, she was also sitting in an area of the run that is narrow, so the other chickens were stepping on her as they walked by and wasn't doing anything about the fact that she kept getting stepped on. I went into the coop to check on her. These chickens were never handled, so they always run from me. The hen I was worried about kind of half tried to run from me. She couldn't stand up all the way, but got up a little bit, walked maybe 6 inches, then sat back down. She then tried to get up a few times but seemed to weak to get up. I picked her up and she didn't really put up a fight like the chickens usually do when I try to pick them up, just sort of laid there in my arms. I took her out of the coop and put her in an animal carrier I have with some bedding, food, and water. She was very eager to drink (their water is inside the coop, so I don't think she could get to it with how weak she was), but when I put her in she could not reach the water and instead of standing and walking to it she just kind of scooted over to it and drank sitting down. She also doesn't seem to be eating. I can't see anything wrong with her, other than her being weak. Is there anything else I should be doing to help her? I am keeping her in the carrier in our mudroom overnight because it will be in the 40s and raining, so I want her to be warm and dry so she can recover.