another theory has implicated a commonly used veterinary medicine for the large-scale disappearance of vultures from the Indian sub-continent. The theory proposed by Lindsay Oaks of the Washington State University, usa, however, raises more questions than it answers. Ornithologists estimate that more than one lakh vultures have disappeared in India since 1997. A similar trend has been reported in Pakistan during the last three to four years. Out of the eight species of vultures found in the sub-continent, two are on the brink of extinction