By the 1960s peregrine falcon populations were all but eliminated in the northeastern United States due to exposure to DDT. But thanks to reintroduction programs, the bird has made a dramatic recovery in Vermont where it still remains an endangered species. Host Marianne Eaton accompanies members of the National Wildlife Federation and the Vermont Institute of Natural Science on a banding operation at the Rattlesnake Cliffs in Salisbury that is part of the Peregrine Falcon Recovery Project.