WildBird
Loving the herd life
My chickens just dust bathe in normal dirt in the chicken yard. They have a few sunny places they prefer that are scratched into dirt "wallows".You said to use clay dust for the dust bath...I have been using play sand...where do you get clay dust? Was my other reply in here? I don’t see it...hmmm
I would direct you to BYC but it looks like you've got plenty of info here (great work @Beekissed)!
Good luck and have a great day!