In June of 2009, Dr. Daniel Klem Jr., a Sarkis Acopian Professor of Ornithology and Conservation Biology at Muhlenberg College, published his landmark study in The Wilson Journal of Ornithology on methods for preventing bird strikes on windows. Dr. Klem is considered by many to be the world's foremost authority on wild bird fatalities. Klem's study was multi-year, rigorous, and scientific in nature. The study involved WindowAlert decals specifically and proved, in conservative terms, the effectiveness of WindowAlert decals. You may read the report here: Report