Acknowledgments

I am grateful to Guy Kirwan, Associate Editor, for his careful revision of the texts, and Peter Pyle, Associate Editor, for his revision of the Plumages and Molts sections.

I thank Dr. Todd E. Katzner, of the Forest and Rangeland Ecosystem Science Center, U.S. Geological Survey, 970 Lusk St., in Boise, ID, 83706, U. S. A., for revising a first draft of the account.

Ignacio Pino, Librarian at the Museo Nacional de Ciencias Naturales (CSIC), in Madrid, provided essential assistance with references, and Alexander Yu. Sokolov, of the Belogorye Reservation, in Borisovka, Belgorod Region, Russia, was especially helpful with the Russian literature.

Pablo M. Dobado, at the Agencia de Medio Ambiente y Agua de Andalucía, in Córdoba, Spain, provided information about breeding trios.

Joan Mayol, Servicio de Protección de Especies, Govern Illes Balears, in Palma, Mallorca, Balearic Islands, Spain, provided information on the causes of mortality.

Prof. Roller MaMing, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, in Urumqi, Xinjiang, P.R. China, provided information about numbers of Cinereous Vulture in China.

Binaya Adhikari, Institute of Forestry, Tribhuvan University, Pokhara, in Nepal, provided information on those Cinereous Vultures admitted to a wildlife rescue center.

I thank Francisco Guil, Ministerio para la Transición Ecológica y el Reto Demográfico, in Madrid, for information on protected areas in Spain with Cinereous Vulture breeding colonies and which are subject to overflight regulations.