🌿 Environment & EcologyMAINS · GS3.14 · GS2.2

Ten years of breeding, and two bustards go back tomorrow

A pillar-less aviary 160 metres long was built at Ramdevra for Rs 9.25 crore so captive-bred Great Indian Bustards could develop flight muscles first. The release itself is the day before the release.

What happened

For Prelims

For UPSC: The most advanced species-recovery programme in the country reaching its decisive stage, and a document with a cost and a dimension attached. Use it on conservation of critically endangered species, on grasslands as habitat rather than wasteland, on the renewable energy against conservation conflict in the Thar, and on Centre-State conservation partnerships, where Rajasthan funded the aviary and the Union supplied the science.
What it is NOT: No population figure appears anywhere - not for the wild population, not for the captive one, and not for the number of birds bred over the decade, which is the single number that would say whether ten years produced a viable breeding stock. No count of how many birds will follow these two, and no timetable. No survival target for the released birds and no monitoring method described, though a pilot release is explicitly said to be generating protocols. Nothing on power line mitigation in the release area, which is the principal mortality risk the birds will face. And no total programme cost - only the aviary's Rs 9.25 crore.

For Mains

Syllabus: GS3.14 · GS2.2 · Linkage L1

Anchor
Ten years of captive breeding reached the point of release. The Union Environment Minister and Rajasthan's Chief Minister initiated the process for returning two captive-bred Great Indian Bustards to Desert National Park at Jaisalmer, the release itself due the following day - the transition from establishing a conservation-breeding population to rewilding the species in its own habitat.
Substantiation (data)
The infrastructure is the substantiation. The Rewilding Aviary at Ramdevra measures 160 by 64 by 14 metres and cost Rs 9.25 crore from the Rajasthan government, built through a State construction corporation in consultation with Ministry and Wildlife Institute scientists. It is deliberately pillar-less, so that birds bred in captivity have unobstructed space to develop flight muscles and natural behaviour before they leave.
Position
That aviary is the part worth understanding. The hard problem in any captive-breeding programme is not producing birds but producing birds that can survive, and a creature raised in an enclosure has neither the musculature nor the behaviour for a desert. Building a gymnasium before a release is what distinguishes a recovery programme from a zoo, and it is the same logic as Buxa releasing 800 chital before one tiger.
Problematisation
What the release does not contain is any population figure. Not the wild population, not the captive one, and not the number of birds bred across the decade - which is the only number that would say whether ten years produced a viable stock or a fragile one. Two birds is a pilot by the release's own description, and no count or timetable is given for those that follow.
Counterpoint
The larger silence is about what the birds are being released into. The principal cause of bustard mortality is collision with overhead power lines, in a landscape that is also India's best solar and wind resource - a conflict that has reached the Supreme Court. Nothing in this release says whether the lines around Desert National Park have been undergrounded or fitted with diverters.
Conclusion
A decade of work, a purpose-built aviary and two birds is an honest ratio for this species, which lays one egg a season and cannot absorb adult losses. Whether it becomes a recovery depends on the two things the release leaves out - how many birds exist, and whether the power lines in the Thar have been dealt with.
Deploys into: Conservation of critically endangered species · Grasslands as habitat rather than wasteland · Renewable energy against conservation in the Thar · Centre-State conservation partnerships
Ministry of Environment, Forest and Climate Change · 2026-10-03 · PRID 2318629 · PIB source ↗
Related: Great Indian Bustard · Desert National Park · Wildlife Institute of India · Central Asian Flyway