Thank you so much for that information! I really enjoy hearing everyones experiences and learn so very much. After speaking with a friend here locally about my situation, she immediately said "they are stressed, what did you do to stress them out, or something is stressing them out". Well now that brought a whole different perspective to the subject, since I have yet to find a single mite or bug on the girls, either early am or any time of the day. I am checking daily, and their bout of diarrhea has cleared up as well. Now with this in mind, I did do something to the girls which could have stressed them out for a few days. I had to pen the girls on the other side of the property due to some unforeseen situation, and thought I had gradually acquainted them into the new pen, however I think that because leaving them there for 8 hrs at a time, on several days in a row, they were completely confused, laying eggs on the ground etc. I did have their food, water, and made a makeshift nesting box for them, but I think I may have found the root of the problem. Since moving back into their main coop, and several days of readjusting, the diarrhea cleared up and so has the feather loss. I'm still glad I did the deep clean, etc. and will continue to perform daily checks on the girls for any other possible cause.