Peregrine Falcon

Paper Rating: Word Count: 1905 Approx Pages: 8

-habitat characteristics, prey, etc.

a) DDT and other organochlorine pesticides

-their harmful effects on Peregrine Falcons

b) Specific examples of population decreases

III. Human effort to reestablish population

- Initial plan to save species from extinction

b) Captive breeding, released into urban areas/wild

d) Examples of specific urban populations

b) Reintroduction to old nesting sites

- Failure of certain populations to recover

c) Worldwide outlook for Peregrine Falcons

Peregrine Falcon Population Timeline

1900 -2ooo breeding pairs in US (Rowland, 2000)

1950s -Populations began disappearing (Rowland, 2000)

-Heavy use of DDT and other organochlorine pesticides

1964 -Peregrine Falcon vanished from Eastern US

1970 - Listed as endangered under the Endangered Species Conservation Act of 1969

-39 breeding pairs in US (Rowland, 2000)

-Peregrine Fund initiated by Dr. Tom Cade

1972 -Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) banned DDT in US

1973 -Endangered Species Act of 1973

1974 -After first year of Cade's plan, 20 hatchlings survived captive breeding, some were released into the wild (Rowland, 2000)

-Fewer than 325 breeding pairs in N. America (Rowland,2000)

-Release of 3,000 captive bred Falcons by 1989, about 1,200 breeding pairs in the wild (Rowland, 2000)

1988 -30 breeding pairs living in US cities (Rowland, 2000)

1991 -12,000 breeding pairs in US (Savage,1992)

1999 -Taken off US Endangered Species list

The Peregrine Falcon is one of the world's most amazing birds. It is amazing because of it's ability to fly at high speeds, live on six continents, be a very effective predator, and adapt to new habitats with great success. It is one of the world's fastest birds, being able to dive at speeds up to 200 mp

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