Bird-friendly glass addresses a widespread issue affecting both commercial and residential buildings: birds often cannot perceive glass as a solid barrier due to its reflective, transparent, or deceptive appearance, leading to millions of bird collisions each year, according to the American Bird Conservancy. Depending on lighting conditions, viewing angles, and surrounding environments, glass can appear invisible, mirror-like, or like a clear passageway, causing birds to attempt to fly through reflections of sky, trees, or interior spaces. Bird-friendly glass solutions are designed to make glazing more visible to birds by incorporating lines, dots, or patterned markings into the glass during manufacturing or through post-production techniques such as digital glass printing. Research shows that patterns following the widely accepted 2 x 4 rule—no more than two inches apart vertically or four inches apart horizontally—are highly effective at preventing collisions. These markings can be subtle or decorative, often barely noticeable to humans while remaining highly visible to birds, and they can be integrated into a wide range of architectural styles. In addition to helping protect birds, bird-friendly glass can reduce the risk of property damage caused by bird strikes, offering a practical solution that enhances safety, design flexibility, and overall building performance without compromising clarity or visual appeal.