Atlantic Cape’s Cape May County Campus has implemented a simple, innovative, and increasingly popular solution to two problems that affect thousands of buildings in the United States: escalating cooling costs and fatal bird collisions. The solution is a bird-friendly film installed over highly reflective and heat-conducting glass.
The dual problems of bird strikes and high utility costs associated with cooling the first floor began immediately after the college’s Cape May County Campus was established in 2005.
“Bird collisions were occurring pretty much daily, and it was disturbing to students and faculty. While researching solutions, we realized we could also address the escalating energy costs at the same time,” said Lisa Apel-Gendron, senior campus administrator.
As the college began exploring approaches that would decrease the number of bird strikes and improve energy efficiency, they were advised to contact one of the leading U.S. authorities on bird collisions, Dr. Christine Sheppard of American Bird Conservancy (ABC). Sheppard has conducted extensive research on the phenomenon of bird collisions and has consulted with many communities to develop and implement bird-friendly guidelines for building construction.
“The experience at the Cape May County Campus is not unusual. Up to one billion birds are killed by building collisions each year, making it one of the top threats birds face in the United States. Bird collision mortality is certainly a contributing factor to the unfortunate reality that we now have over 200 species of birds in serious trouble,” said Sheppard, who oversees the Bird Collisions Program at ABC.
According to Sheppard, bird mortality from collisions with glass is a problem virtually anywhere there are birds and glass. In the most comprehensive study of its kind, involving the review and analysis of almost two dozen studies and over 92,000 records, federal scientists recently found that between 365 and 988 million birds are likely killed in the United States each year as a result of collisions with buildings.
“Glass and window film manufacturers are responding to situations like the one we saw at Atlantic Cape,” said Sheppard, “and increasingly, legislation is being passed at municipal and state levels requiring bird-friendly design for new buildings and retrofit of existing facilities. This increasing call for more bird-friendly windows and doors has led to development of new products and repurposing of old ones.”
“At ABC, we evaluate and test these products and provide scientifically sound feedback that rates the degree of bird avoidance each new glass product delivers,” she continued.
Ultimately, Atlantic Cape decided to apply a window film called CollidEscape, one of the earliest solutions for bird collisions with glass. To birds, this product appears to be opaque, but people inside have a clear view of the outdoors. The college began installing the treatment on 255 windows in June.
The CollidEscape treatment has a track record of reducing bird strikes. Previously, the windows reflected the nearby trees and sky, making it appear to be a very real and inviting flyway for birds. With CollidEscape applied to the windows, there is essentially no reflection of the surrounding environs. Further, CollidEscape blocks about half the heat energy from the sun, suppressing both infrared and ultraviolet radiation. It also reduces glare, producing a more comfortable environment for students and staff and resulting in energy savings by reducing the air conditioning requirements.
“We have not seen any bird strikes since the installation was completed on the back wall, and we’ve also seen a significant improvement in comfort, glare reduction, and solar heat in the first floor lobby,” Apel-Gendron said.
Sheppard and ABC have created a testing program to expand knowledge of the visual signals that deter bird collisions with glass and to provide support and feedback for companies developing new bird-friendly products. The ability to provide quantitative ratings for materials has proved essential in development of ordinances and guidelines for bird-friendly design. Efforts are underway to expand the capacity of the program as more companies identify bird-friendly construction and plan to retrofit existing buildings.