Birds like to nest on sheltered spots in and around the home. Cute as they are, they can attract myriad of dangerous pests. Bird mite is one of them. These parasitic "creepy crawlies" bite and can transmit disease. Yvette from Alexandria, Virginia called us on July, 2015 and reported seeing tons of “tiny black dots” moving around the bathroom walls, on the floor, on the toilet, and on the bathroom sink. Later, we identified them as bird mites. ** BioTech Free Inspection **. We came out for the free inspection. Outside of the bathroom, we found that the builders left the bathroom vent open without installing a screen to protect critters from getting in. That allowed the birds easy access. Once the birds got in, they created a nest, which attracted the bird mites. Bird mites have very short life cycles. They can complete development in five to twelve days, That makes it possible for the mite population to explode in a short amount of time. The mites then migrate in mass to invade the living quarters of your home. In this case, they overran the bathroom. ** Exclusion and Clean Up Process **. We sprayed in and around the vent area with a strong but eco-friendly pesticide to kill all the bird mites that were outside. Inside the bathroom, the bird mites were all over the ceiling, walls, and toilet. We treated the entire bathroom and the interior vent, after which the customer was asked to stay away from it for about two days. Then we came back and cleaned it up. Since there were baby birds in the vent, we left it open to allow their wings to grow and fly out of the vent on their own. We came back in ten days to remove the bird nest. Then, we screened the entry area with a steel mesh, so that no more critters can ever get in again, while the vent can still perform its function..