Zenfolio | Robert Strickland Photography | Bald Eagles

The national emblem of the United States, the Bald Eagle was threatened with extinction in the lower 48 states because of DDT (a type of pesticide) poisoning. Protection under the Endangered Species Act, together with reintroduction programs, brought populations up, and the species was reclassified as Threatened in 1995. By 1999 some were suggesting that Bald Eagles could be removed from the endangered species list, and they were delisted in June 2007—a true conservation success story.