A new paper in the Cambridge Journal Bird Conservation International shows how population trends of both Red-headed Vulture and Egyptian Vultures have declined across India in parallel with those of the Critically Endangered Asian Gyps species. They have also shown corresponding slight signs of recovery again corresponding to the diclofenac ban and reduced levels of the drug in cattle carcasses. This strongly suggests they may also be intoxicated by diclofenac, although this has not been experimentally determined.

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Times of India
Hindu Business Line