Thanks for listing and adding links to the actual products. I have poultry dust, will get some fly spray, and have ordered a permethrin bomb as i am not comfortable mixing and spraying an area as large as i have by hand.

I have checked the chickens at night, and NOTHING! Literally what I'm dealing with is INVISIBLE to the naked eye. My veterinarian is not a chicken specialist, but he did mention that some species of mites are microscopic! Seems that's what I'm dealing with. I had them for a short while last summer, but when the temps dropped it went away and I forgot about them. For some reason they have resurged with a vengeance in the last month or two!!!