Oakland adopts Bird Safety Building Measures
By Ilana DeBare
Good news! The City of Oakland just added a set of Bird Safety Measures to its building permit requirements – becoming the third major city in North America to adopt such standards.
Golden Gate Bird Alliance approached Oakland city planners and asked them to develop bird safety guidelines last winter. GGBA Conservation Project Manager Noreen Weeden provided advice on the details and language, as did Christine Sheppard of the American Bird Conservancy.
The addition of the Bird Safety Measures is particularly timely since Oakland is anticipating some large new development projects along its waterfront – buildings that could pose a big collision threat to birds if not designed thoughtfully.
“These measures will definitely have a positive impact on future development in Oakland,” Weeden said.
Downtown Oakland & Port of Oakland, viewed from the Bay / Photo by Allen Hirsch
Building collisions kill an estimated 300 million to 1 billion birds across the U.S. and Canada each year. Many of these deaths involve collisions with windows, since birds cannot see most glass. Nighttime lights worsen the problem by drawing birds off their migratory routes and into dense downtown areas with lots of glass walls and windows.
Gold-crowned Sparrow killed by a window collision
The new Oakland measures apply to structures that have glass as part of their exterior, and that are next to large bodies of water, parks or green spaces.
Among other things, the measures require developers to:
- Avoid the use of mirrors in landscape design.
- Apply bird-friendly glazing to at least 90 percent of windows and glass between the ground and sixty feet above ground. Some positive glazing options include opaque glass, clear glass etched with patterns, and UV-pattern reflective glass (since unlike humans, most birds can see ultraviolet light).
- Turn out nighttime architectural lights and avoid beam lighting during spring and fall migration seasons.
- Install timers or motion sensors on interior lights, so they can be programmed to turn off between 11 p.m. and sunrise.
- Minimize roof antennas and other rooftop structures that create additional collision risks.
- Include bird safety in building management plans. For instance, building managers could ask employees to draw blinds at night during migration season and could schedule nightly maintenance before 11 p.m. to keep buildings dark at night.
Bright nighttime lights like these of downtown Oakland can draw birds off their migratory routes / Photo by Allen Hirsch
Oakland planners started drawing up the measures in January.…













