FILE - This March 16, 2017, file photo released by the Bannock County Sheriff's Office shows a cyanide device in Pocatello, Idaho, The cyanide device, called M-44, is spring-activated and shoots poison that is meant to kill predators. The U.S. Environmental Protection Agency has taken an initial step to reauthorize a predator-killing poison that injured a boy in eastern Idaho and killed his dog. The federal agency on Tuesday, Aug. 6, 2019, announced an interim decision involving sodium cyanide that's used in M-44s. 

CHEYENNE, Wyo.— A federal wildlife-killing program will be banned from using deadly M-44s — spring-loaded capsules armed with cyanide spray — across more than 10 million acres of public land in Wyoming. The ban is as part of an agreement resulting from a lawsuit brought by wildlife advocacy groups.

A Cheyenne federal court has approved the agreement, which also requires the U.S. Department of Agriculture’s Wildlife Services to analyze the environmental impacts of its killing of coyotes, bobcats and other wildlife in Wyoming. New trapping restrictions will also be put in place, as will additional protections for grizzly bears.

“This is a major victory for Wyoming wildlife, especially those that have been perpetually targeted in this horrifically destructive war on animals,” said Andrea Santarsiere, a Center attorney representing the conservation groups involved in the lawsuit. “These deadly cyanide weapons should be banned everywhere.”

Under the new court order, Wildlife Services must provide, by Jan. 8, 2021, an environmental analysis of the effects and risks of its wildlife-killing program in Wyoming. In 2018 Wildlife Services killed 6,231 coyotes, 51 wolves, 148 foxes, and thousands of other creatures in Wyoming.

Pending completion of the analysis, the court order imposes several measures to protect Wyoming’s wildlife. It bans the use of M-44 cyanide devices, den fumigants and lead ammunition on all National Park Service lands, U.S. Forest Service lands, Wilderness Areas and Wilderness Study Areas.

In addition, numerous restrictions aimed at reducing nontarget wildlife deaths now apply statewide. Wildlife Services cannot use neck snares lacking breakaway features to release heavier nontarget animals or Conibear body-gripping style traps that kill trapped animals and thereby prevent release of nontarget species. And foothold traps must have offset or padded jaws to reduce suffering and injury of trapped animals.

Several additional measures aim to prevent Wildlife Services from inadvertently harming endangered grizzly bears, including restrictions on use of neck snares and traps where grizzly bears live.

“It’s past time for the government to stop killing predators for the sake of the livestock industry,” said Erik Molvar, executive director of Western Watersheds Project. “While the settlement is a temporary reprieve for native wildlife, we hope that taking a hard look at the program will reveal the ineffective and dangerous aspects of these activities, resulting in permanent protections.”

“Wild animals in Wyoming can breathe a sigh of relief,” said Taylor Jones of WildEarth Guardians. “This ruling will make our public lands much safer for wildlife, humans and companion animals.”

The victory announced today is the result of a lawsuit filed in January by the Center for Biological Diversity, Western Watersheds Project and WildEarth Guardians.