The nine-year-old went out a few days ago and reported that she saw two kinds of bugs crawling on the chickens. One kind was an off-white color, and... she forgets the rest. When I went out I only saw the white (straw-colored) ones, and I identified them as poultry lice. Most of the birds (a few of them may have gotten mixed-up) were dusted with food-grade DE. I have not seen a louse since, but will they come back?