The population of peregrine falcons declined rapidly during the 1950s and 1960s and reache
A.DDT was not generally in use in areas devoted to heavy industry.
B.In the time since the use of DDT was banned in 1972, the population of peregrine falcons has been steadily increasing.
C.Peregrine falcons, like other birds of prey, abandon eggs that have fallen out of the nest, even if the eggs remain intact.
D.Starlings, house sparrows, and blue jays-birds the peregrine falcon preys on were not adversely affected by DDT in their habitats.
E.Other birds of prey, such as the osprey, the bald eagle, and the brown pelican, are found in the same areas as is the peregrine falcon.