As many as a billion birds die each year from collisions with glass, in the U.S. alone. To reduce mortality, it is essential to have a way to test the effectiveness of proposed solutions. Ideally, wit
As many as a billion birds die each year from collisions with glass, in the U.S. alone. To reduce mortality, it is essential to have a way to test the effectiveness of proposed solutions. Ideally, wi
As many as a billion birds die each year from collisions with glass, in the U.S. alone. To reduce mortality, it is essential to have a way to test the effectiveness of proposed solutions. Ideally, wit
