I have a broody and she's got mites or lice I think. I cleaned out the bedding and dusted with Sevin and DE. I sprinkled de on the broody, the other one won't let me near her and by the time they are asleep tonight we will be having storms. The bigger one that isn't a broody is a game hen and she's a tough one to do anything with! Am I on the right track to keeping the pests down? She's hard to do anything with right now but I was able to look through her tail feathers and she has a bald spot at the base of her tail. There were also some white things clinging to her tail feather. Should I also sprinkle her with the Sevin dust?