M. Virani

Dropping dead: causes and consequences of vulture population declines worldwide.
Ogada, D. L., Felicia Keesing, and M. Virani. 2012. “Dropping Dead: Causes and Consequences of Vulture Population Declines Worldwide”. In The Year in Ecology and Conservation Biology, 1249:57-71. Annals of the New York Academy of Sciences.