Thanks so much for that info. (Isn't that pic disgusting?? *shudder* LOL!)Yep, the poultry dust did the job. Ivomec does not work anymore as a wormer for chickens due to its overuse as a miteacide in chickens. Simply put, worms have built resistance to the product. It is still effective against mites. Chicken lice dont bite and suck blood like cattle lice. However you're correct, if the opportunity arises and there's blood from a scratch, they'll feed off it. Ivomec and dusts have no effect on lice eggs. Cutting the feathers or fluff out to remove them or some folks have stated that they have used coconut oil to remove them and it works. Or redusting in 7-10 days will kill lice larva hatched from the eggs. Thanks for the photo and good job!