I don't think that I need to convince you that birds hitting windows and dying is a bad thing. Bird collisions with buildings is right at the top of the list of bird fatalities ( along with cats ), and with the huge decline of migratory birds in recent years, it makes sense that large institutions do what they can to help reduce collisions. So here is the first problem. There are no vertical transparent surfaces in nature, thus birds are completely unaware that they are about to hit a window. Birds are often confused because they see the reflection of a tree in the window and try to land on the tree. University campuses are usually covered in windows (modern buildings tend to have lots of windows to let in natural light and convey transparency... also they look cool). And, university campuses have a lot of trees. So mix these two things together and you get a lot of reflected trees causing bird collisions. The second problem has to do with the solutions, in that they are expensive....