I bought my first chics this spring and they just started laying late this summer. This week their egg production dropped dramatically and I have noticed a lot of shell less eggs. Today I noticed one of my BR's acting sick and having runny diarrhea. I've already successfully treated one who was egg bound and she acts the same, but with the low egg production, I worry. Is this just the normal slowing of the fall season or do I have bigger things to worry about?