Diarrhea concerned or too much water?

[aldolinosovaon]

I have two amuerecana and three Isa brown hens that are all in their first multing period. I noticed it a week or so ago but one of my amuerecanas has been having a diarrhea like watery poop and her "butt fluff" is very dirty. Although I cannot get pictures nor get very close to her because we have an aggressive rooster who tries to attack when u go anywhere near his hens. Should I be concerned or is it just an overabundance of water in her diet?

 

[azygous]

Poop style is only one small symptom of state of health. As with your little flock and their watery poop, it alerts you to check out your chickens further.

The single most revealing thing about chicken health is their behavior. If you see that all of your chickens appear to be active, eating normally, vocal, curious, moving around a lot, runny poop then becomes simply runny poop.

If you were to see a chicken isolating herself, not moving much, eyes dull, quiet, fluffed up, tail low and flat, then runny poop would tell you this hen is sick and she needs treatment.