"The Bureau of Land Management (BLM) is taking action to end the use of M-44 devices that deliver sodium cyanide on public land. This decision would build on existing limitations in several States and extend across all public lands managed by the BLM. To implement the decision, the BLM has renewed a Memorandum of Understanding with the U.S. Department of Agriculture’s Animal & Plant Health Inspection Services (APHIS) Wildlife Services regarding wildlife damage management. The BLM will also amend internal guidance, as appropriate, to clarify the prohibition.

An M-44 is a spring-loaded device, staked in the ground at surface level, that can be loaded with a sodium cyanide capsule and baited to attract predator species. When triggered, the spring ejects a lethal dose of cyanide into the biting animal’s mouth, resulting in death within one to five minutes.

The BLM’s decision to ban M-44s that deliver sodium cyanide on public lands follows existing bans or use-limitations in Idaho, Oregon, California and Washington. There is pending legislation to ban the use of M-44s on all public lands, and their use is currently prohibited on National Wildlife Refuges and National Park Service lands. Less than 1 percent of the M-44s used by APHIS Wildlife Services in 2022 were on BLM-managed lands."

Idaho State Journal had the story from BLM November 25, 2023. [2]