The reason is that they're getting poisoned, and the reason that they're getting poisoned is because there's human-wildlife conflicts. The pastoral communities are using this poison to target predators, and in return, the vultures are falling victim to this.
To je tako jer se otruju, a razlog tome je taj što postoje konflikti između ljudi i divljači. Pastirske zajednice koriste otrov zbog grabežljivaca, a zbog toga stradavaju strvinari.