Hi All, Just looking for a bit of advice. My four girls are all shaking their heads. I thought it might be lice, or mites, there was dark stuff around they vent, so 1IC and I dusted them, and their coop with diatomaceous earth. The stuff has gone frothier vents, but they are all still shaking their heads. Sort of like a violent twitch. Would like to know if anybody has any advice for us. Maybe suggest natural cures, if anybody has an idea.