I have a Barred Rock hen that just turned one year this October. Well yesterday, my hen was acting just a tad off. Eyes not as bright, just ever so slightly hanging out away from the group. She is still eating and active. Not sure what her poos are like as of yet. I felt her crop, normal, belly does not feel distended or hard. She has been losing alot of feathers, but that seems to be more of a molt. She has lost tail feathers, and all her belly feathers are gone. I checked her over for external parasites, didn't see anything. She did lose a ton of feathers, just from me handling her. All my hens were wormed twice in September, at 10 day intervals, with Valbazen. I debated bringing her in, but with no real symptoms, I figured she would be more comfortable with the other chickens for now. I know something is wrong, just have the feeling. Unfortunately, when I get that feeling, I'm usually right. I did lose another hen just over a month ago. She kind of acted the same, with no real symptoms. However, by the time she showed she was off, she was very thin. Dot, my Barred Rock, has not really lost alot of weight. Any suggestions as to what could be going on? Thanks!