In 2018, M-44 cyanide devices killed over 200 non-target animals, including a bear, according to the Western Environmental Law Center, yet a new memo appears to abolish the ban on their use on public lands. A new memo immediately nullifies a Biden-era directive that prohibited M-44 deployment on Bureau of Land Management (BLM) lands, reintroducing a controversial wildlife control method.
Environmental and public safety concerns previously led to a ban on M-44 cyanide devices. A recent administrative action, however, reinstates their use across public lands. The reinstatement of M-44 use across public lands creates regulatory instability, hindering long-term conservation efforts.
Based on historical data of indiscriminate killing and this recent policy reversal, the reintroduction of M-44s will likely increase wildlife mortality and potential hazards on public lands, eroding previous conservation efforts.
The Indiscriminate Danger of Cyanide Bombs
An M-44 device, when triggered, ejects a lethal dose of cyanide into an animal’s mouth, causing death within one to five minutes, according to the BLM. These are not precision tools, leading to widespread culling beyond intended targets. In 2018, M-44s killed over 200 nontarget animals, including a bear, foxes, opossums, raccoons, and skunks, according to the Western Environmental Law Center, according to the Western Environmental Law Center. The devices killed 6,579 animals in 2018 and 13,232 in 2017, primarily coyotes and foxes, according to the Western Environmental Law Center, confirming their role as instruments of widespread culling, not targeted control.
M-44s threaten a wide array of non-target wildlife. The reauthorization prioritizes predator control over documented ecological harm and public safety risks.
A Shifting Policy Landscape
- 2017-2018: M-44 devices killed thousands of animals, including over 200 non-target species in 2018, according to Western Environmental Law Center.
- Biden Administration Era: The BLM's amended 2023 MOU explicitly prohibited M-44 use on its managed public lands, according to the BLM.
- Trump Administration Reauthorization: The Trump administration reauthorized the use of sodium cyanide in M-44 wildlife-killing devices, according to the Animal Welfare Institute.
- New Memo 2026: A new memo between BLM and Wildlife Services appears to abolish the Biden-era directive, immediately reversing established policy on M-44 deployment on public lands, Sources report.
- Policy Reversal: The Trump administration has decided to allow consideration of M-44 sodium cyanide devices on public lands, as reported by The Denver Post.
The M-44 policy fluctuates, revealing a contentious debate between wildlife management and environmental conservation. Recent actions favor less restrictive use, revealing a political willingness to sacrifice established environmental protections for short-term predator control.
Anticipated Backlash and Support
The reintroduction of M-44s will likely reignite strong opposition from environmental groups and animal welfare advocates. These organizations consistently cite the devices' indiscriminate nature and risks to protected species and public safety. The rapid political pendulum swing, from a Biden-era ban to a Trump-era reauthorization, fuels regulatory uncertainty.
Conversely, ranching and agricultural interests seeking predator control are expected to support the reauthorization. The reauthorization prioritizes livestock protection, effectively turning public lands into a free-fire zone for cyanide devices. The reintroduction of M-44 cyanide devices marks a dangerous return to a 'kill-first' approach.
The reintroduction of M-44s appears to prioritize short-term economic interests over documented ecological harm, likely influencing future decisions on endangered species protection and recreational use of public lands.
Understanding M-44 Devices
What is the M-44 device?
The M-44 device is a spring-loaded ejector that delivers a lethal dose of sodium cyanide when an animal pulls on a bait-laced cap. It is typically staked into the ground in areas where predators threaten livestock, operating without human supervision.
What are cyanide bombs used for?
M-44 devices are primarily used by federal and state agencies for predator control, protecting livestock and agricultural resources. They target canids like coyotes and foxes, perceived threats to ranching operations.
What are the risks associated with cyanide bombs?
Beyond documented non-target wildlife kills, M-44 devices pose risks to public safety, including domestic pets and humans who may inadvertently trigger them. Deployed on public lands, they create hazards for recreational users who may encounter them without warning.
