I posted below earlier....and have been keeping an eye on all my younger hens, and noticed they all are not as active as normal, and seem to be extremely sleepy. They are all eating, drinking, cones are normal, etc. but their inactive behavior has me concerned. I noticed one of the girls is keeping one eye closed, at all times. I was able to get her to open it, and it looks perfectly fine. These girls are very active normally, and this came on suddenly, without a warning! Does anyone know what the problem could be? Any suggestions would be appreciated very much.