LosPollosLopez
In the Brooder
I had a Egyptian Fayoumis die from heat exhaustion a while back. (miscommunication led to cage being moved and sun shifted in afternoon.
)
She began to have strange pooping episode before she died. was pretty sure organ damage/ failure caused this. Maybe your chicken has the same to a lesser degree.
My two cents.

She began to have strange pooping episode before she died. was pretty sure organ damage/ failure caused this. Maybe your chicken has the same to a lesser degree.
My two cents.