Singapore’s “dead birds” hotline recorded its highest number of reports last year, reflecting a growing toll of birds killed after colliding with glass surfaces on buildings. The museum notes that the problem is expanding beyond sheer numbers, now affecting newer and sometimes rarer species as urban development intensifies. The report explores the causes behind these collisions, the reasons bird-friendly architecture has yet to become common practice, and the practical solutions—such as specially treated glass and façade modifications—that could significantly reduce bird deaths. Andrea Heng and Rani Samtani discuss these issues with Dr Tan Yen Yi, Research Fellow at the Lee Kong Chian Natural History Museum, Faculty of Science, National University of Singapore.