The devices spray deadly sodium cyanide into the mouths of unsuspecting coyotes, foxes and other carnivores lured by smelly bait. Anything or anyone that pulls on the baited M-44 device can be killed or severely injured by the deadly spray.

Image by Jim Robertson,
Animals in the Wild
Thanks partly to thousands of Center activists who spoke up, a bill
banning the use of M-44s—or "cyanide bombs"—in Oregon has been signed into
law.
These cruel death traps shoot sodium cyanide powder into the faces of
coyotes, foxes and other unsuspecting wildlife. Horrifying poisoning and
death follow. Hated by the public, cyanide bombs also threaten people and
pets.
The Center is fighting for a permanent nationwide ban on them — and with your help, we will win that fight.