An offer of effective and inexpensive safety markings to prevent bird collisions. Designed for ordinary window glass, medium and high-rise buildings with glazed surfaces, bus stops, glass gardens, balconies, and noise barriers. Silhouettes of predators in various shapes and sizes, in white and black color resolution. A selection of stickers in the shape of birds or maple and oak leaves with a special UV effect for higher anti-collision efficiency and less disturbance to glass surfaces.