09/18/2026
With Global Bird Rescue just a couple of days away, we wanted to share one way you can help birds before a collision ever happens: making problematic glass safer.
Feather Friendly Bird Collision Deterrent Markers has been a sponsor of Global Bird Rescue for several years, and we’re very happy to have their support again this year. Their window markers are one of the most effective ways to treat existing glass. Applied to the outside of a window in a closely spaced pattern, the markers help birds recognize glass as a barrier instead of trying to fly through reflections of trees and sky.
And we know this approach works. Feather Friendly has been installed on buildings that were experiencing regular bird collisions, with documented projects showing dramatic reductions after the glass was treated. For example, at Chicago’s McCormick Place, 120,000 square feet of glass was treated with Feather Friendly markers, reducing recorded bird deaths during fall migration from 1,280 in 2023 to just 18 in 2024 - a reduction of more than 95%.
Global Bird Rescue is coming up September 21-27, and searching for and rescuing birds that have collided with glass is just one way to participate. If you know of problematic glass at your home, workplace or in your community, consider treating it and helping prevent collisions in the first place.
Learn more about Global Bird Rescue and ways to get involved at globalbirdrescue.org.