This raptor is "One of the most widely distributed of warm-blooded terrestrial vertebrates, the Peregrine Falcon occurs from the tundra to the Tropics, from wetlands to deserts, from maritime islands to continental forests, and from featureless plains to mountain crags—it is absent as a breeder only from the Amazon Basin, the Sahara Desert, most of the steppes of central and eastern Asia, and Antarctica" (White et al. 2002). Yet, by 1970, the Peregrine Falcon no longer bred across most of eastern North America and parts of Europe. Numbers were greatly reduced in many other areas. DDT and similar chemicals seem to be the cause of this calamity. Peregrines are recovering where these pollutants are now banned. As most Minnesotans are aware, active programs of introducing breeding falcons to cities, whose large buildings substitute for natural cliffs, also contribute to this falcon's comeback. Cities like Astoria and Minneapolis/St. Paul are now part of this magnificent falcon's habitat.
Monday, September 10, 2012
Peregrine Falcon
This raptor is "One of the most widely distributed of warm-blooded terrestrial vertebrates, the Peregrine Falcon occurs from the tundra to the Tropics, from wetlands to deserts, from maritime islands to continental forests, and from featureless plains to mountain crags—it is absent as a breeder only from the Amazon Basin, the Sahara Desert, most of the steppes of central and eastern Asia, and Antarctica" (White et al. 2002). Yet, by 1970, the Peregrine Falcon no longer bred across most of eastern North America and parts of Europe. Numbers were greatly reduced in many other areas. DDT and similar chemicals seem to be the cause of this calamity. Peregrines are recovering where these pollutants are now banned. As most Minnesotans are aware, active programs of introducing breeding falcons to cities, whose large buildings substitute for natural cliffs, also contribute to this falcon's comeback. Cities like Astoria and Minneapolis/St. Paul are now part of this magnificent falcon's habitat.
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