In a critical effort to prevent the extinction of one of the world’s heaviest flying birds, three captive-bred Great Indian Bustard (GIB) chicks have been transitioned into a specialized rewilding tunnel in Jaisalmer, Rajasthan. This move represents a pivotal phase in a high-stakes conservation strategy designed to bridge the gap between controlled captive breeding and the unpredictable environment of the wild.
The transition is part of a broader institutional push to stabilize the dwindling population of the critically endangered species, utilizing a facility specifically engineered to simulate natural conditions while minimizing human interference.
The Rewilding Process
The three chicks have been moved into a rewilding tunnel, a sophisticated architectural intervention constructed at a cost of ₹9.25 crore. This facility is not a traditional enclosure but a transitional zone designed to facilitate “soft release.”
The primary objective of the tunnel is to decouple the birds from human dependency. In standard captive breeding, chicks often become habituated to human caretakers, a trait that can be fatal once they are released into the wild where human proximity does not equate to safety. The tunnel allows the birds to experience natural weather patterns, forage for food, and develop the physical stamina required for flight and survival, all while remaining within a protected perimeter.
By gradually reducing human contact and introducing natural environmental pressures, the facility aims to trigger the innate survival instincts of the GIB. This process is essential for ensuring that the birds can identify predators, locate sustainable food sources, and navigate the arid grasslands of the Thar Desert.
Why This Intervention Matters
The Great Indian Bustard is currently teetering on the edge of extinction. The species has seen a catastrophic decline in numbers, leaving the remaining wild population fragmented and genetically vulnerable. The introduction of captive-bred individuals into the wild is no longer a supplementary conservation goal but a necessity for the species’ survival.
The success of this rewilding phase is critical because the mortality rate for captive-bred animals released directly into the wild is historically high. The ₹9.25 crore investment in the Jaisalmer tunnel reflects a shift toward a more scientific, phased approach to reintroduction. If these three chicks successfully navigate the tunnel phase and integrate into the wild population, it will provide a proven blueprint for the release of future cohorts.
Analysis:
The scale of investment in the rewilding tunnel underscores the extreme technical difficulty of saving the Great Indian Bustard. The GIB is a shy, territorial bird with specific habitat requirements; simply breeding them in a lab is insufficient. The “rewilding” aspect is the most volatile part of the conservation chain. The tunnel serves as a biological filter, ensuring that only birds with the requisite survival capabilities are released. This suggests that conservationists are prioritizing “quality” of release—ensuring a higher survival probability per bird—over the “quantity” of birds released. The effectiveness of this facility will likely be measured not by the number of birds that enter the tunnel, but by the number of birds that survive their first year in the wild post-release.
Background and Context
The Great Indian Bustard’s decline is a result of a convergence of environmental and anthropogenic pressures. Historically found across the Indian subcontinent, the species is now largely restricted to Rajasthan and Gujarat.
The most immediate threat to the GIB is the proliferation of high-voltage power lines. Because the birds have poor frontal vision, they often fail to see the thin wires while taking off or landing, leading to fatal collisions. This issue has been the subject of significant legal scrutiny and intervention by the Supreme Court of India, which has previously ordered the removal or undergrounding of power lines in critical GIB habitats.
Beyond infrastructure, habitat loss has played a devastating role. The conversion of native grasslands into agricultural land and the encroachment of invasive species have stripped the GIB of its nesting and foraging grounds. As a ground-nesting bird, the GIB is also highly susceptible to predation by stray dogs and foxes, further compounding the risks faced by any newly released individuals.
The captive breeding program, which produced the current chicks, is an attempt to create a “genetic insurance policy.” By maintaining a healthy captive population, scientists hope to prevent the total loss of the species while simultaneously working to make the wild environment safe enough for reintroduction.
What to Watch Next
The coming months will be a period of intense observation for the Jaisalmer cohort. Observers will be monitoring several key indicators:
1. Foraging Independence: Whether the chicks can successfully transition from provided feed to hunting insects and seeds in the tunnel environment.
2. Flight Proficiency: The development of flight muscles and navigation skills necessary to avoid predators and find mates.
3. Human Avoidance: The degree to which the birds maintain a healthy fear of humans, which is a primary indicator of rewilding success.
4. Integration: Once released from the tunnel, the ability of these birds to integrate with the few remaining wild GIBs without territorial conflict.
Furthermore, the success of this project depends heavily on the state of the surrounding landscape. The rewilding tunnel is only effective if the birds are released into a habitat where the threat of power line collisions has been mitigated. Continued monitoring of infrastructure changes in the Jaisalmer region will be as important as monitoring the birds themselves.
Conclusion
The placement of three Great Indian Bustard chicks into the Jaisalmer rewilding tunnel is a high-stakes experiment in avian conservation. While the technical facility provides a controlled environment for growth, the ultimate test remains the harsh reality of the Rajasthan grasslands. The transition from a ₹9.25 crore facility to the wild is the final and most dangerous hurdle in the fight to save the species from extinction.
Sources:
The Hindu – National: https://www.thehindu.com/news/national/three-great-indian-bustard-chicks-placed-in-rewilding-tunnel-in-jaisalmer/article71270173.ece
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Story synopsis gathered from: The Hindu – National — source
