Vultures across Africa and Asia face catastrophic population declines from secondary poisoning, targeted killing for body parts, and diclofenac contamination, causing immense individual suffering and ecological damage.
Vultures dying from poisoning suffer acute and prolonged distress. Organophosphate poisoning causes convulsions, inability to fly, and slow death over hours. Lead poisoning from contaminated carcasses causes neurological damage and starvation as coordination deteriorates. Deliberate poisoning of carcasses to harvest vulture parts causes mass mortality events that can kill hundreds of birds at once. The ecological consequences of vulture loss — longer carcass decomposition times, increased disease — also create welfare costs for the broader animal community that depends on clean environments.