I just had two hens found dead this morning in the coop. They diddnt seem to be sick or anything, but I havent been getting any eggs. One had raggedy feathers, she had been the roos favorite. But the other one seemed fine. They are molting, which I attributed the lack of eggs too. However, when I picked them up, my hand was suddenly covered with tiny tiny bugs. Literaly, thousands of them. Looking at pictures, I am pretty sure they are mites. I just cant believe I diddnt suspect something, they all seem so healthy! So I am going to clean the coop and dust everything down. Would the mites kill them? I never have dusted them, they are free range and dust-bathe constantly. Is there anything else I should do?