Bird Friendly Glass 

Each year, more than 600 million birds die from collisions with glass in the United States alone. Although bird-friendly building regulations continue to increase in North America, glazing options have been limited.
Vitro Architectural Glass (formerly PPG glass) and Walker Glass have partnered to create Aviprotek®: a line of sustainable glass options that deliver both exceptional energy efficiency and bird safety, with minimal impact on visible light transmission (VLT).