We noticed my 6 month old copper maran hen had hardened poop which I suspect is pasty butt. We soaked her and cleaned her up-she seems ok. My question is what typically causes this? No change in feed. We did have the remnants of Hurricane Ian hit here in Coastal NC 2 days ago so maybe it's stress related? I am hoping for ideas to prevent this from happening again. Not sure if these things are a fluke or something I can help. We do acv in their water. No other hens seem to be having a problem