10/01/2026
Did you know an estimated 1 billion birds die every year from window collisions alone?
Birds collide with windows because they cannot distinguish between open air and windows, or they see the reflections of the trees and attempt to fly to them. 60% of window collisions are fatal even when sent to wildlife rehabilitation centers. Because Duluth sits at a prime location for fall migrations, and for birds resting on the shore along Lake Superior, the UMD campus sees thousands of visiting birds every day.
Bulldogs are stepping up to protect our feathered visitors. The Bird Club at UMD and dedicated student volunteers led a collaborative effort to survey 12 sections of campus, in order to gather crucial, actionable data on bird strikes. In just one month, they documented nearly 200 bird strikes, though the actual number may be much higher.
“For every one bird we see, there’s likely five other birds that have hit that window. Due to things like predation, lawnmowers, good Samaritans wanting to move these birds, a bird flying away stunned but then succumbing to its injuries somewhere else, we’re counting 200 casualties, but our number is much, much higher than that for actual casualties, which is devastating.” - Annamarie Johnson, president of Bird Club at UMD
Based on data from the Bird Club study, UMD is installing preventative CollidEscape dots on windows where they saw the most collisions, for a simple and proven method to prevent birds from striking the glass. Meant to maintain a clear view through the glass, the grid helps birds recognize the obstacle.
Other window clings are even more obvious, like this student art piece near UMD’s Darland Administration Building, which can help prevent strikes, while beautifying a space at the same time. “ This contrasting black and white is really good. There’s dots in it, so when you’re on the inside, you can still get that light, you can still see through it. But from the outside, it looks like this beautiful art piece. We’ve never found a bird strike here.”- Johnson
What can you do to help prevent window bird strikes?
You can add window clings like dots or artwork to your windows so birds see the window as an