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What was the historical size of the American peregrine falcon population? ... The decline of the American peregrine falcon population began in the 1940s, was most pronounced during the 1950s and continued through the 1960s into the early 1970s throughout most of its range.
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www.fws.gov/endangered/recovery/peregrine/QandA.html
www.fws.gov/endangered/recovery/peregrine/QandA.html
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The peregrine falcon population will be monitored for the next 5 years. In order to maintain a heathy population of peregrines in the East, nesting and wintering habitat must be preserved. Peregrines still need to be protected from killing or capture.
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www.fws.gov/chesapeakebay/Peregr.htm
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Direct and indirect estimates of Peregrine Falcon population size in Northern Eurasia from Auk, The provided by Find Articles at BNET ... Much of the literature on Peregrine Falcon densities in northern Eurasia relates to a time when the population was severely depressed by pesticides (e.g. Ivanov et al. 1983,
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findarticles.com/p/articles/mi_qa3793/is_200004/ai_n889...
findarticles.com/p/articles/mi_qa3793/is_200004/ai_n8891743/
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THE 2005 BREEDING STATUS AND POPULATION DYNAMICS OF PEREGRINE FALCONS IN VERMONT Margaret R. Fowle and Kathleen A. METHODS To determine the breeding chronology and status of territorial Peregrine Falcon pairs in Vermont, occupied cliffs throughout the state were monitored from early April through late July.
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www.nwf.org/wildlife/pdfs/peregrinereport2005.pdf
www.nwf.org/wildlife/pdfs/peregrinereport2005.pdf
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When DDT was banned from use in the US the Peregrine Falcon's population began to rise again. The use of pesticides is controlled in Canada and the U.S., but not in Latin America where some of the birds go for the winter.
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www.powayusd.com/teachers/lharvey/falcon2003/facts.htm
www.powayusd.com/teachers/lharvey/falcon2003/facts.htm
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The Porcupine River population of peregrines are of the subspecies: Falco peregrinus anatum or the American peregrine falcon. In Alaska, annual surveys are conducted during mid July by biologists of the Arctic Refuge...
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alaska.fws.gov/nwr/arctic/wtperfal.htm
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The peregrine falcon is a raptor, or bird of prey. Adults have blue-gray wings, dark brown backs, a buff colored underside with brown spots, and white faces with a black tear stripe on their ... Historically, the use of DDT (Dichloro-diphenyl-trichloroethane) as a pesticide resulted in a rapid decline in the population.
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www.defenders.org/wildlife_and_habitat/wildlife/peregri...
www.defenders.org/wildlife_and_habitat/wildlife/peregrine_falcon.php
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The Raptor Resource Project is a non-profit, 501(c)3 group working to restore the midwest population of Peregrine falcons and other raptors by captively breeding birds for release in the wild. ... About Us Peregrine Falcon Facts Ospreys...
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