When the
bald eagle was chosen as the United States’ national bird, it
was because it symbolized power and freedom. It is hard to imagine but
this symbol of strength was nearly destroyed in America. At one point,
there were nearly 50,000 bald eagles in the United States. By 1972 only
about 800 breeding pairs remained in the country. In 1979 there were
only four breeding pairs living in Ohio.
What happened to the eagles? The largest problem
was the use of a pesticide called DDT. Farmers used DDT to get rid of
insects that might destroy their crops. Unfortunately DDT was made of
chemicals dangerous for other wildlife too. These chemicals washed into
lakes and rivers and contaminated the fish. Eagles like to live close
to rivers and lakes because fish is one of their favorite foods. The
fish the eagles were eating contained those dangerous chemicals. Though
the eagles did not die from the chemicals, they produced eggs that were
very soft and broke very easily, so new eagles were not being born.
Fortunately the use of chemicals like DDT became
illegal. The bald eagle was placed on the list of endangered species.
It is illegal to hurt eagles in any way or to own any parts of an eagle—even
a feather! Because of breeding programs, the population of bald eagles
is once again growing; Ohio now has over 100 nesting pairs. In the United
States, the bald eagle may soon be taken off the endangered species
list. |