Recent Findings and Species Affected in Hong Kong
According to public reports submitted via the Global Bird Collision Mapper platform, a total of 58 suspected bird-window collision victims were recorded in Hong Kong from September to November 2024, including 5 bird imprints. During this period, at least 13 bird species were involved, such as the Grey Nightjar, Pacific Golden Plover, Red-billed Starling, Crested Goshawk, Yellow-browed Warbler, Chestnut Bulbul, Lanceolated Warbler, Common Emerald Dove, and Fork-tailed Sunbird.
Among the 58 suspected victims, 19 were Chestnut Bulbuls found in November. This species is known for inhabiting wooded areas and is a common winter visitor and resident in Hong Kong. November marks the start of their migration, either to Hong Kong or other wintering grounds. In the period of 2022-2023, Chestnut Bulbul was among the top 5 bird species recorded in window collisions, often occurring in group collision events, likely due to their gregarious behaviours.
The Urgent Need for Action
The increasing use of expansive glass surfaces in modern architecture has intensified the issue of bird-window collisions, drawing significant public attention. In light of this, it is essential for corporations to adopt bird-friendly design principles and materials in their new building projects. Notably, a local glass company has even developed bird-friendly glass that has been tested and certified by the American Bird Conservancy. By prioritizing such innovative materials and incorporating design elements that reduce collision risks, businesses can play a pivotal role in preserving biodiversity amid ongoing urban development. Embracing these practices not only enhances corporate responsibility but also fosters a sustainable and bird-friendly environment in Hong Kong.
