I noticed my chickens have almost invisible flesh colored things crawling around on them. They are very, very tiny and hard to notice. I'm sure they are from wild birds--I've noticed a lot of wild birds around their pens recently. I sell eggs. I get one to two dozen eggs a day! I don't know if I can afford to throw all those eggs away after treating them. Is there any way to easily treat birds without wasting their eggs? I also can't figure out if we have lice or mites. I've read that Exprinex PourOn doesn't go through eggs, meat, or milk but it might not be effective against lice. I want to treat them soon but I am so confused over the choices. Sevin dust is cancerous and kind of freaks me out, plus it will be hard to dust 40+ birds. A few of them don't like to be touched, and some of them are chicks. Once four years ago we had lice and I tried DE. It didn't help at all. I would appreciate any advice!