I keep seeing small tiny bugs about the size of a speck of dust, light brown in colour. I cleaned out the coop a few weeks ago and put in louse powder on the coop and walls, I even loused the chickens. Instructions on container said to do it again and that would solve the problem. I did louse the coop and chickens again and its been a week after that and I still see tiny little bugs on the beems on the coop. When I check the chickens I see one or two. Help how many times do I need to keep doing this? Is this a regular bug or a flea, tick, lice? Sorry I don't have any pics. I am using saw dust in the coop now. Any help in this are would be great.