THE BALD EAGLE
The bald eagle was chosen June 20, 1782 as the emblem of the United States of America, because of its long life, great strength and majestic looks, and also because it was then believed to exist only on this continent.
On the backs of our gold coins, the silver dollar, the half dollar and the quarter, we see an eagle with outspread wings.
On the Great Seal of the United States and in many places which are exponents of our nation's authority we see the same emblem.
The eagle represents freedom. Living as he does on the tops of lofty mountains, amid the solitary grandeur of Nature, he has unlimited freedom, whether with strong pinions he sweeps into the valleys below, or upward into the boundless spaces beyond.
Source: American Bald Eagle Information