Bird Mirgration Film is made for the purpose of saving birds lives. The way it works is by changing the surface apperance of your windows. By changing the apperance of the glass you can alert a bird in flight that the window is not a open path for flight. There are many ways to change the apperance of the glass. Generallly speaking, the more visual distractions, the better the result. The best result would be to cover the window completely with an opaque or translucent material. Apex offers a variety of options from subtle to extreme along with some very creative solutions. We can even help you create your own solution to this very important responsibilty of protecting our friends in flight.