screech owl screech owl
Bibliography

References

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Coyle, Patrick G., Jr. Understanding the Life of Birds. Lakeside, California: Summit Publications, 1987.

Erlich, Paul, et al. Birds in Jeopardy. Stanford: Stanford University Press, 1992.

Johnsgard, Paul A. Hawks, Eagles, and Falcons of North America. Washington D.C.: Smithsonian Institution Press, 1990.

Kerlinger, Paul. Flight Strategies of Migrating Hawks. Chicago: The University of Chicago Press, 1989.

Kjellen, Nils. "Differences in age and sex ratio among migrating and wintering raptors in Sweden." The Auk111(2), 1994, pp. 274-284.

Mansell, William. North American Birds of Prey. New York: William Morrow and Company, Inc., 1980.

Martin, Brian P. World Birds. Enfield, England: Guinness Books, 1987.

MacKenzie, John P.S. Birds of the World. Birds of Prey. Minocqua, Wisconsin: NorthWord, Inc., 1986.

Mundy, Peter, et al. The Vultures of Africa. London: Academic Press, 1992.

Newton, Ian. Population Ecology of Raptors. Vermillion, South Dakota: Buteo Books, 1979.

Parry, Gareth and Rory Putman. Birds of Prey. New York: Simon and Schuster, 1979.

Pickford, Peter and Beverly and Warwick Tarboton. African Birds of Prey. Ithaca: Cornell University Press, 1989.

Scott, Shirley L., ed. Field Guide to the Birds of North America. Second Edition. Washington, D.C.: National Geographic Society, 1987.

Snyder, Noel and Helen. Birds of Prey Natural History and Conservation of North American Raptors. Stillwater, Minnesota: Voyageur Press, 1991.

The Peregrine Fund. World Center for Birds of Prey. Annual Report, 1994.

Welty, Joel C. The Life of Birds. Third edition. Philadelphia: Saunders College Publishing, 1982.