So, as The New York Times reports, an increasing number of glass companies and research labs have started to think about ways to stop these deadly collisions, without hindering our view. \Almost anybody you talk to has seen a bird hit a building or heard a bird hit,\ Christine Sheppard, a bird collisions campaign manager with the American Bird Conservancy, told NPR. Birds dont have very good depth perception, she said, so reflections in a glass window can make it seem like there isnt a window there at all. \glass companies realize theres a market for bird-friendly products.\