This paper explores the role of public opinion in a landmark shift in the federal predator control program. In 1963, the Leopold Committee recommended extensive reform in the federal predator control program, predicting that growing public support for the environmental movement would force such a move if the government did not initiate a change. In the years following the publication of the Leopold Report, the U.S. Division of Wildlife Services reformed its predator control program and tried to improve its public image. Meanwhile, both environmentalists and ranchers fought to control public opinion about the issue. The 1972 ban on predacides (poisons for predators) in federal predator control programs resulted as much from the environmentalists’ ability to control public opinion as from the changing scientific understanding of predators.
Feldman, James W.
"Public Opinion, the Leopold Report, and the Reform of Federal Predator Control Policy,"
Human–Wildlife Interactions: Vol. 1
, Article 23.
Available at: http://digitalcommons.usu.edu/hwi/vol1/iss1/23