America's national bird, the mighty bald eagle, is being threatened by a new menace. Once decimated by hunters and loss of habitat, this newest danger is suspected to be from the intentional poisoning by livestock ranchers. Authorities have found animal carcasses injected with restricted pesticides. These carcasses are suspected to have been placed to attract and kill predators such as the bald eagle in an effort to preserve young grazing animals. It appears that the eagle is being threatened again by the consummate predator, humans.