Slender-billed Vulture
Gyps tenuirostris

As per IUCN Redlist the global population of this vulture species ranges from 730-870 mature individuals

Distribution

The slender-billed vulture is found in India from the Gangetic plain north, west to Himachal Pradesh, south potentially as far as northern Odisha, and east through Assam. It is also found in north and central Bangladesh, southern Nepal, Burma and Cambodia.

Threats

The Slender-billed Vulture, listed as Critically Endangered by IUCN, has suffered catastrophic declines, with only a few hundred mature individuals left in the wild. The primary threat is poisoning from the veterinary drug diclofenac, which causes fatal kidney failure when vultures feed on contaminated livestock carcasses. Other toxic NSAIDs like aceclofenac and ketoprofen pose similar dangers. The species is also at risk from secondary poisoning, when vultures consume carcasses laced with pesticides or poisons meant for feral dogs and carnivores. Habitat loss, reduced food availability, nesting disturbance, electrocution, and tree felling further add to its decline, demanding urgent conservation action. Click for more info 

Lifespan

Their lifespan ranges from 40-50 years in captivity; may vary in wild conditions.