I recently cleaned out the coop due to a mite infestation. As PeepersMama and Wyorp Rock suggested I dusted the coop (and myself) with DE and replaced all bedding and straw. Now that I've done that, how do I treat the birds? I put a handful of DE on their backs and tried working it into the feathers. That was a flapping/squawking failure. I'm pretty sure I don't put them in a paper bag with a bunch of DE and shake it like Shake 'n Bake. What do I do?