What are some accomplishments of the National Audubon Society?

On a national level, the Audubon society has been conserving land and pushing for important legislation for over a century. The list of legislation created or assisted by the National Audubon Society is extensive, and includes the 1918 Migratory Bird Treaty Act, the 1964 Wilderness Act, the 1972 banning of DDT by the EPA, and the 1973 Endangered Species Act. Since it's inception the organization has preserved hundreds of thousands of acres of habitat across America, ensuring that many species of birds and other animals would have livable wilderness