3 of my 4 eighteen month old hens are going thru various stages of ugly right now. I noticed this morning that one of them also has diarrhea. Is that something that might be just because she's molting? The 6 month old hens are as beautiful as ever, so I don't think it's a pest infestation. I'm pretty sure it's molting. I'm hoping the diarrhea is nothing to worry about. Now that I think of it, at least one of the older hens has a very faded comb too now - faded like when they get broody type of faded pink. Is that associated with molting too? I hope so. I don't want my older gals getting sick.