Summer Reminder: M44s

From a 2021 twitter thread

Summer reminder, since many are heading out into the national parks and federal lands:

Be VERY careful with anything that looks like a sprinkler head or trash in the ground – it could easily be an M44 cyanide device. It can kill humans and dogs.
Our tax dollars pay for this poison.

A mechanical poison bomb used on federal public lands for canid control
An M44 device in the ground. It looks like a pink marshmallow on top of a sprinkler head.
M-44 Cyanide Traps
M-44-style traps, also known as Piston
Canid pest ejectors, or CPEs, were first developed in the U.S. in the 1930s as a way to autonomously control pest species.
When the animal pulls on the baited lure head, the trigger releases the piston. Under pressure of a mechanical spring, the piston strikes the poison capsule, ejecting a lethal dose of sodium cyanide into the animal's mouth.

A drawing of an M44 describing how it works. (See alt-text in notes) 

A hand touching a device set in the ground
A sun-bleached M44 with a gloved hand either placing it or removing it, to show scale. The marshmallow part that attracts canids and contains the cyanide is about the size of the last joint of an adult thumb.

Not only do these devices kill and maim humans and dogs, they are absolutely counterproductive for their intended “canid control” purpose. When stable coyote populations experience a sudden disruption, new coyotes who don’t know the local rules move in and have larger litters.

The previously stable population of coyotes were a third line buffer between herds of livestock and transient coyotes.
When that stable relationship is disrupted, predation of livestock goes drastically up. And unstable predator populations are always more aggressive.

But public land ranchers are whiny & do not treat their herds well (by bringing them in for lambing/calving), so blame all livestock deaths on wolves/coyotes. (This simply isn’t true.)
They overstate livestock deaths by orders of magnitude.
The ranchers are WHY M44s exist.

M44s are not mapped or picked up; they’re just permanent landmines of cyanide.
So: take care with anything that looks artificial in the ground.
Keep your dogs on leash and reeled in, especially in range land.
Amyl nitrite (poppers) is the immediate antidote to cyanide; it can buy you time. It’s about the only good reason to have a bottle of poppers. That said, it’s not the best antidote, and all it does is buy time to get someone to the emergency room. It is no longer recommended for EMTs or professionals, and they are equipped with much better rescue meds, but if you’re out in public lands, you’re also often an hour or more from the nearest ER or ambulance, so having a bottle of poppers may be the difference between living to see the ER or not. Obvious caveat: use at your own risk. 

Long-term: write your federal & state reps about permanently banning them. (There is supposed to be a limit, but it’s… not enough.)
Write to your nearest Bureau of Land Management office & object to them.

Read Christopher Ketcham (This Land; part II, The Betrayal) & his sources.

And don’t forget: Ranchers lie.
They are not feeding the world. They produce less than 2% of the US annual beef production and none of the dairy. They are charged $1.35 (one dollar & 35 cents) per cow & calf pair or per 5 sheep per month.
We don’t need them; they mooch off us.

Places to worry most about — these are the states with the most unintentional animal deaths. Which mostly happen where populations and wildlands intersect.

A map of the states with the most unintentional animal deaths from M44s, from the Center for Biological Diversity. The states in Red (most deaths) are West Virginia and Texas, the states with in dark pink are New Mexico, Wyoming, North Dakota, Oklahoma, and Virginia. The states in medium pink are Colorado, Wyoming and Nevada. The states in light pink, where M44s are legal but have the fewest deaths, are Oregon, Idaho, Utah, South Dakota and Nebraska. Any state not mentioned does not have M44 placement.
A map of the states with the most unintentional animal deaths from M44s, from the Center for Biological Diversity. The states in Red (most deaths) are West Virginia and Texas, the states with in dark pink are New Mexico, Wyoming, North Dakota, Oklahoma, and Virginia. The states in medium pink are Colorado, Wyoming and Nevada. The states in light pink, where M44s are legal but have the fewest deaths, are Oregon, Idaho, Utah, South Dakota and Nebraska. Any state not mentioned does not have M44 placement.

Source: Center for Biological Diversity

What (the few) warning signs will look like, IF they’re posted. They are NOT large. It’s very easy to walk past one and never see it.
Warning signs are usually no larger than 8 inches x 10 inches; these are in the 5×7 range. Think snapshot. Tall one is about 6”x15”.

An M44 warning sign
An M44 placement warning sign. It is about 6 inches off the ground, on a short metal stake, and the card itself is no more than 6 inches tall and 5 inches wide. It’s a white card printed in read, and it is difficult to read. The visible words are: Danger!! An identifiable drawing, an arrow pointing left with a skull and crossbones in the middle, POISON in italics and DO NOT TOUCH in smaller caps.
M44 warning signs
The signage for an M44 placement, consisting of a small U bend metal stake, the M44 itself without the bait, and the small sign, reading DANGER PELIGRO
An M44 warning sign in situ, with relatively clear text. It’s on a stake in the ground, with the bottom of the sign touching dirt. The sign is about 4 times taller than it is wide, and the low grass around the sign indicates it might be as much as 15 inches tall, if the grass is 4-6 inches tall. The sign reads DANGER, with a poison arrow, and POISON, with a drawing of the danger marshmallow, and CONTAINS CYANIDE, DO NOT TOUCH. There are 3 paragraphs of fine text under DO NOT TOUCH, but being basically on the ground, those words are very difficult to read.

Unless you have a respirator and a haz-mat suit and a golf club and a tarp/thick plastic sheeting with you, please do not try to defuse these. (If you have all of those in your day pack, put on your suit and airway protection, put the tarp over the M44, weigh down the edges with stones or dirt, and smack the M44 with the golf club until you hear it pop, and walk away. But don’t try without serious chemical protection. These will kill humans, too.)


Notes: Alt Text on M44 drawing

M-44-style traps, also known as Piston Canid pest ejectors, or CPEs, were first developed in the U.S. in the 1930s as a way to autonomously control pest species.

When the animal pulls on the baited lure head, the trigger releases the piston. Under pressure of a mechanical spring, the piston strikes the poison capsule, ejecting a lethal dose of sodium cyanide into the animal’s mouth.

Sources: http://www.predatordefense.org;

http://www.smithandgeorg.com.auhttp://www.aphis.usda.gov

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