Bird-glass collisions: A growing threat from ordinary buildings in India

Bird-glass collisions, or bird-window strikes, are emerging as a significant, undercounted threat in India, with birds flying into reflective or transparent glass panels in homes, schools, and offices. Experts note that many small and migratory birds are injured or killed because they perceive glass as open space or reflections of vegetation. Unlike common perception, most collisions occur in everyday structures, not just skyscrapers, especially in urban areas with fragmented green spaces. The lack of national estimates and coordinated monitoring systems hinders understanding the scale of the problem. Researchers advocate for simple interventions like making glass visible to birds and increasing public awareness.

Key Points

  • Bird-glass collisions are a significant and undercounted threat to birds in India.
  • Birds collide with glass due to visual illusions created by reflective or transparent surfaces.
  • Most collisions occur in ordinary buildings like homes and offices, not just skyscrapers.
  • Simple mitigation strategies, such as making glass visible, and increased public awareness are crucial.

Exam Facts

  • Researcher: Peeyush Sekhsaria (architect and birdwatcher).
  • Rehabilitation Centre: Avian and Reptile Rehabilitation Centre (ARRC) in Bengaluru.
  • Vulnerable species: Indian pittas (Pitta brachyura), White-cheeked barbets (Psilopogon viridis), Asian koels (Eudanamys scolopaceus).
  • Petition: 2023 petition before National Green Tribunal in Bengaluru for bird-safe building guidelines.

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All current affairs of 28 May 2026