Can zoo breeding save the endangered Greater Adjutant stork?

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Zoo Breeding Offers a Glimmer of Hope for the Endangered Greater Adjutant Stork

The successful hatching of two Greater Adjutant chicks at Assam State Zoo marks a significant development in the conservation of this critically endangered species. This event, the first reported instance of this bird breeding in captivity, provides a potential avenue for bolstering the dwindling wild population, which is estimated to be around 1,000 individuals in India and Cambodia. The Greater Adjutant, a striking bird standing 1.5 metres tall with a 2.5-metre wingspan, faces severe threats from habitat destruction, poaching, and poisoning, leading to the loss of many historical nesting sites.
First Captive Breeding Success for a Threatened Species

The hatching of the two Greater Adjutant chicks on November 26, 2019, and approximately ten days later, represents a breakthrough for a species previously thought to breed only in the wild. This unprecedented success at Assam State Zoo, achieved after breeding platforms were installed in 2017, offers a vital blueprint for future conservation initiatives. Experts believe this achievement will encourage similar breeding programmes in other facilities worldwide, potentially aiding in the species' recovery.
Collaborative Conservation Efforts Underpin Breeding Success

The breeding success was a direct result of a collaborative effort between the Assam State Zoo and the conservation group Aaranyak. This partnership focused on creating an environment conducive to breeding, including the erection of two three-metre high bamboo platforms designed to mimic the birds' natural nests. These artificial nests, approximately a metre wide, were furnished with nesting materials and supplemented by carefully prepared food.
Addressing Historical Stigma and Environmental Challenges

The Greater Adjutant, known locally as "hargilla," has historically faced negative perceptions due to its appearance and habits, leading to its shunned status. However, a campaign spearheaded by Aaranyak, involving village women conservationists, has worked to improve the species' reputation and protect its nesting grounds. This broader conservation approach, combined with the zoo's controlled breeding environment, addresses both the ecological and social challenges impacting the stork's survival.
Mitigating Disturbances for Vulnerable Nestlings

Careful consideration was given to minimising disturbances to the Greater Adjutants within the zoo environment. Measures were implemented to monitor and control the commotion created by visitors, ensuring that the birds were not subjected to undue stress. This focus on creating a tranquil setting was crucial for the successful incubation and hatching of the eggs, demonstrating that captive breeding can be managed to meet the specific needs of such a vulnerable species.

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Can zoo breeding save the endangered Greater Adjutant stork?

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