I noticed one of my hens was acting different last night when I got home from work. They were all roosting when I went in to check things out. One was in the egg box, she was standing but it looked like she was going to sleep standing up. I reached in and touched her to see if she was responsive and she "woke up" and acted normal. So this morning she was in the same place and doing the same thing. She would act normal, but then her eyes would shut as her head slowly went down. So I went to pick her up and separate her from the rest and she woke up and ran out. She didn't want me to catch her at first, but when I walked up to her she just let me pick her up and take her. Not sure what might be going on.