Situation Overview
Birdwatcher and data scientist Renuka Selvamani reports a sharp rise in distressed birds at Doddanekundi Lake. The most affected species is the Oriental or Indian darter, popularly called the snakebird.
Key Developments
- Renuka observed at least three darters with beaks tangled in discarded onion‑netting.
- ARRC has recorded weekly cases from ten lakes, a surge from the usual one‑two birds per year.
- Common waste items causing entanglement: plastic wrappers/bags, fishing nets, and colourful puja items.
- Rescue teams use motorised boats, drone tracking and binoculars, but rescued birds are often emaciated.
- Bird‑watching groups plan a poster campaign to raise public awareness about waste disposal near lakes.
Important Facts
The darter’s beak is adapted to spear fish, not to untangle foreign material. When a beak gets stuck, the bird cannot hunt, leading to starvation. Unlike raptors, darters cannot lift their legs to clean the beak; they only shake their heads, which is insufficient for removal.
Plastic waste, especially bright‑coloured cloth from puja, attracts birds visually, increasing the risk of entanglement. The problem is not new, but the frequency has risen sharply in 2026, with ARRC reporting at least one new case every week across lakes such as Jakkur, Yelahanka, Rachenahalli, Hesarghatta, Sampengahalli, Lalbagh and Chelkere.
Exam Relevance
Understanding this issue helps aspirants in GS Paper IV – Environment & Ecology. It illustrates:
- Impact of plastic pollution on aquatic biodiversity.
- The role of NGOs like ARRC in wildlife conservation.
- Citizen‑science initiatives (bird‑watchers, poster campaigns) as part of community‑driven environmental governance.
Way Forward
To curb the distress of darters and other water birds, the following steps are recommended:
- Strict enforcement of waste‑dumping bans around urban lakes; install segregation bins for plastic and puja waste.
- Public awareness drives highlighting the visual attraction of bright cloth to birds and the lethal consequences of entanglement.
- Scale‑up of rescue infrastructure: more motorised boats, trained volunteers, and systematic use of drone tracking for early detection.
- Collaboration between municipal bodies, NGOs like ARRC, and citizen groups to monitor lake health.
Addressing waste management at the source will protect the darter, a bio‑indicator species, and preserve the ecological balance of Bengaluru’s lakes.