Singapore's dead bird hotline received record 650 reports last year

Key Concepts

• Building Collision/Window Strikes: The primary cause of reported bird deaths in Singapore, occurring when birds fly into windows due to reflections or perceived continuity of habitat.
• Hotline for Bird Deaths: A dedicated reporting system run by the National History Museum to document bird fatalities and environmental conditions.
• UV-Visible Glass: A potential mitigation strategy where glass is treated to be visible to birds while remaining translucent to humans.
• Decals: Adhesive designs applied to windows to disrupt reflections and make the glass surface more visible to birds.
• Ground-Up Initiative: Citizen-led projects focused on implementing bird-friendly solutions, such as decal installation.

Increase in Reported Bird Deaths & Primary Cause

In 2023, the hotline operated by Singapore’s only natural history museum, dedicated to receiving reports of dead or injured birds, recorded its highest number of reports to date. The museum began tracking these numbers in 2020. The primary cause of these incidents is building collision, specifically window strikes. Birds that collide with buildings often exhibit symptoms such as dazed behavior, ruptured internal organs, and bloody nostrils, with fatalities being a common outcome. The museum documents these deaths to identify patterns and correlate them with environmental factors.

Understanding Window Strikes

Window strikes occur when birds fly into windows, mistaking reflections for open space or perceiving the glass as non-existent due to its transparency. As explained in the transcript, windows are “very reflective” and “often transparent and then also reflective,” creating an illusion of continuous habitat that birds attempt to fly through. This is a significant issue as the reflective and transparent qualities of windows confuse birds’ navigational senses.

Reporting Numbers & Awareness Growth

The number of reports received by the museum increased dramatically last year, reaching approximately 650. This represents a “over five-fold increase” compared to the reports received in 2020. Dr. Tan, who manages the hotline, attributes this increase not to a rise in actual bird deaths, but to a growing awareness of the hotline itself. Despite this, she emphasizes the need for increased preventative measures.

Mitigation Strategies: UV-Visible Glass

One proposed solution to reduce bird collisions is the use of glass that is visible to the ultraviolet (UV) spectrum, which birds can perceive, while remaining translucent for human vision. This allows birds to recognize the presence of the glass and avoid flying into it. However, the transcript notes that this solution is currently more expensive, potentially costing “around 15% more” than standard glass.

Mitigation Strategies: Decals & Local Initiatives

Another, more affordable option is the application of decals to window surfaces. These decals disrupt the reflective properties of the glass, making it more visible to birds. A ground-up initiative led by students from Nanyang Technological University is currently raising funds to install decals at a local hotspot by September. The project’s short-term goal is to install the decals and monitor their effectiveness.

Importance of Local Context & Scalability

The student initiative emphasizes the importance of verifying the effectiveness of solutions within the specific environmental context of Singapore. They acknowledge that solutions proven effective in other “climates, other countries, other geographies” need to be rigorously tested locally to ensure applicability. The long-term vision is to scale the project beyond the university campus and implement bird-friendly measures across Singapore. As stated by a member of the initiative, they want to be “very safe that this um measures are indeed workable and uh applicable in our local context.”

Dr. Tan’s Recommendations

Dr. Tan suggests a simple immediate action individuals can take: “draw curtains so windows look opaque.” She also advocates for broader efforts to make Singapore’s landscape more “butt friendly” – a colloquial term referring to bird-friendly.

Conclusion

The increasing number of reported bird deaths due to building collisions in Singapore highlights a growing environmental concern. While awareness of the issue is rising, proactive measures are crucial. Solutions like UV-visible glass and decal application offer potential mitigation strategies, but their cost-effectiveness and local applicability require careful consideration and ongoing monitoring. The success of ground-up initiatives and a broader commitment to creating a bird-friendly landscape are essential for reducing these preventable fatalities.