Context: The first attempted reintroduction of a captive-bred white-rumped vulture in South India ended in failure after the radio-tagged bird was accidentally electrocuted by a power line in Ebbanad village, near the Mudumalai Tiger Reserve.
About The White-Rumped Vulture:
What It Is?
- The white-rumped vulture (Gyps bengalensis) is an Old World scavenger bird native to South and Southeast Asia. Belonging to the basal evolutionary branch of the Gyps genus, it was historically documented as the most abundant large bird of prey in the world during the 1980s, before suffering a catastrophic, near-extinct population crash.
Habitat and Distribution:
- Primary Landscape: Thrives across the Gangetic plains, central valleys, and semi-arid zones of India, Pakistan, Nepal, Bangladesh, and localized parts of Southeast Asia.
- Nesting Habits: The bird builds massive nests—averaging 1 meter in length—high up in tall, mature canopy trees. It prefers species like the Banyan (Ficus benghalensis), Peepul, Arjun, and Neem, frequently choosing locations near human habitations or dense gallery forests.
- Scurrying Range: They actively soar across open country, grasslands, agricultural fields, and forest peripheries, utilizing high-altitude thermal air currents to scout for food.
Conservation Status:
- IUCN Red List: Categorized as Critically Endangered since 2000.
- Core Biological Threats:
- Veterinary diclofenac residues in cattle carcasses cause fatal kidney failure and visceral gout in vultures.
- Uninsulated power lines, pesticide residues, and habitat loss continue to endanger vulture populations.
Key Characteristics:
- Physical Markers: The smallest of the Gyps vultures, weighing between 5 to 7.5 kg with a body length of 75 to 93 cm. Adults display a distinctive white neck ruff, a brilliant white lower back and rump, and silver-grey secondaries that contrast with their otherwise charcoal-black plumage.
- Aerodynamic Wingspan: Features broad wings with a massive span ranging from 92 to 2.6 meters (6.3 to 8.5 feet), engineered to sustain long-distance flight over thermal air currents with minimal energy output.
- Scavenging Adaptations: Possesses an unfeathered, pink-tinged head and neck, allowing the bird to stay clean while feeding inside deep carcasses. It features slit-like nostrils and a powerful, sharp, silver-colored bill with dark ceres.
- Digestive Capabilities: Capable of digesting old, dry bones, ribs, and skull fragments from small mammals. A feeding flock can completely strip a large bullock carcass down to bare bones in under 20 minutes.
- Reproductive Blueprint: The species is monotypic (lacks subspecies). Breeding occurs between November and March, with the female laying a single white egg that incubates for 30 to 35 days. The young chick remains dependent within the nest for three months.
