Today, bald eagles are protected under the Bald and Golden Eagle Protection Act and the Migratory Bird Treaty Act. These prohibit the killing or injuring of bald eagles as well as disturbance of their nests. Bald eagles were removed from the list of threatened and endangered species in 2007, after being listed for 40 years. A large part of their recovery was due to the ban of the pesticide DDT, which, after being consumed by eagles’ prey through water, was transferred to the eagles. DDT caused bald eagle eggs to be too thin, making the birth of new offspring very difficult. The combination of the ban of this chemical and the protection of the birds and their habitat due to their endangered status was sufficient to back to 10,000 breeding pairs in 2007, from 417 in 1967.
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