Реферат: Белоголовый орлан
31. P.R. Ehrlich, D.S. Dobkin and D.Wheye «The birder’s handbook» 1988. Simon and Schuster, New York. p.785.
32. George Laycock «Autumn of the Eagle» Charles Scribner’s Sons New York 1973
33. Knight, Richard L.; Anderson, David P. 1990. Effects of supplemental feeding on an avian scavenging guild. Wildlife Society Bulletin. 18(4): 388—394.
34. Kralovec, Mary L.; Knight, Richard L.; Craig, Gerald R.; McLean, Robert G. 1992. Nesting productivity, food habits, and nest sites of bald eagles in Colorado and southeastern Wyoming. Southwestern Naturalist. 37(4): 356—361.
35. D.A. Buehler. Bald Eagle (Halieaeetus leucocephalus). In The Birds of North America, 2000, No. 564 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.
36. P. F. Schempf. 1997. J. Field Ornithol. 68:150—151. USFWS, Suite 240, 3000 Vintage Blvd., Juneau, AK 99801—7100 (28 years.) RCT
37. Hunt, W.G., D.E. Driscoll, E.W. Bianchi and R.E. Jackson. 1992. Ecology of Bald Eagles in Arizona. Report to U.S. Bureau of Reclamation, Contract 6—CS—30—04470. Biosystems Analysis, Inc. Santa Cruz, CA.
38. Nancy Green «The bald eagle» 1985. In: Di Silvestro, Roger L., ed. Audubon wildlife report 1985. New York: The National Wildlife Society:509-531.
39. Bald Eagle Protection Act, Раздел 16 Кодекса США § 668
40. US Department of Veterans Affairs. "The American Bald Eagle" онлайн [7] Доступно 11 мая 2007 г
41. «Franklin: Writings» Library of America. 1987. ISBN 978-0-940450-29-5
Источник: http://ru.wikipedia.org/wiki/Белоголовый_орлан