So I was doing my normal routine with my chickens today, which includes a lot of snuggling, when I found brown bugs crawling on my young BR's back feathers! I know that they are lice and that they can be treated using Permethrin dust or possibly oregano? However, if I were to use permethrin, I would have to somehow put it on all of my 58 chickens individually. Over half are flighty and not easy to catch. I would love to know if there is a treatment that I can use that can easily treat all of the chickens without me having to chase them. If so, what are the measurements? Is there a withdrawal period? Thank you!