When Cold Comes, Snakes Take a Snooze
From April until the frosts of fall, snakes are out and about—an active part of our Michigan outdoors world. As cold weather moves in, these ectothermic creatures will do what snakes do—seek a snug place to snooze through cold times until spring. Many people just don’t like snakes—fearing them when they needn’t; yet some lingering [...]
From April until the frosts of fall, snakes are out and about—an active part of our Michigan outdoors world. As cold weather moves in, these ectothermic creatures will do what snakes do—seek a snug place to snooze through cold times until spring.
Many people just don’t like snakes—fearing them when they needn’t; yet some lingering tribal fear of snakes finds a majority of humans at least nervous at the sudden presence of one.
Perhaps it’s a hangover from the biblical tale of the serpent in the Garden of Eden who conned old Adam and Eve into taking a bite of forbidden fruit. Or maybe it’s the collective wisdom of the wide world that some snakes are downright nasty to people.
Serious trouble with a snake in Michigan is slim at best. Compared to other parts of the world, our state has just 18 snake species. Only the massasauga rattlesnake is venomous; it doesn’t even exist in the Upper Peninsula; Your chances of encountering one are long shots.
Unlike nearby states, Michigan has a stable population of massasaugas, protected here by a aovernor’s order calling it a “species of special concern.”
At a June workshop, some outdoor writers got a closeup look at this small rattlesnake as MSU reptile researcher Rebecca Christoffel presented a program on Michigan’s massasauga rattlesnake, “Myths and Realities.”
“Michigan has many reservoir populations of the species and they are being located, monitored, and studied closely,” Christoffel said.
Christoffel fits rattlers with radio transmitters so their movements can be tracked. Mapping these known ”reservoirs” of the species aids biologists in assuring this species does not fall into a threatened or endangered status.
The snakes depend on wetlands for food and shelter and nearby grassy uplands for hunting their prime foods, small mammals such as mice, voles, and other vermin.
“Many snakes are needlessly killed because they are thought to be a threat. And not just massasaugas, either. Most people are not able to identify snakes and kill many harmless and beneficial snakes thinking they are rattlesnakes. But all snakes are of high value in helping to keep down populations of mice, rats, and other vermin.”
Christoffel brought several common Michigan snakes with her, handling them and allowing the writers to touch them and get close looks at several that are often mistaken by the public as “a rattler.”
“One reason these other snakes are mistaken for rattlesnakes is that when frightened they will nervously shake their tails. In dry leaves or brush it will sound like a rattle. Only the massasauga has a real set of rattles in its tail, but the sound of any nervous snake tail in dry leaves and grass can make people think they are hearing a rattler.”
Then she used a snake hook to place a live massasauga on the floor of the meeting room. The snake showed little displeasure at being handled, just moving a little now and then on the carpeted floor. “They are docile when they don’t feel threatened.”
Massasaugas are small snakes averaging 18 to 39 inches, with 24 the average for an adult. They have a thick body, a head that is heart shaped with elliptical pupils, and a pit located between the eye and the nostril (hence the name ‘pit viper’). This pit is an infrared heat detector, which, with their eyesight and sense of smell, makes them very effective hunters.
One question: Are there any reported deaths from massasauga bites in Michigan? The answer? None in the record. “There may have been, but not reported at some time in the past, but the public record does not support any proven deaths from a massasauga bite,” Christoffel said.
In fact, people bitten often do not actually get injected with venom. Venom is saved for prey and otherwise only injected if the snake is highly alarmed. Even then, bites in people may be of low toxicity. “Their fangs are short, so most ankle high leather work boots will give you protection from an accidental encounter.”
Michigan is rich in large undeveloped habitat areas on state and federal land, natural areas and preserves, which helps avoid losing a major part of the snake’s habitat.
Researchers like Christoffel continue exploring and mapping these probable reservoirs of the massasauga. “Knowing where they are will help us preserve their habitat in the future,” she said.


March 25th, 2007 at 6:19 pm
Teresa of mt pleasant Said:
SO give us pics so we know how safe we are with the snakes around us.
We found a baby today,Which makes me assume there is a nest nearby.I would love to know if it is a threat to my children and grandchildren.When do the michigan rattlers come out of hiding and are they usually that small when they come out?(6 to 7 inches in lenth.) What color are they when they are small?Etc…..
Mar,25 2007
May 4th, 2007 at 8:49 am
Cindy of Whitehall Said:
My son found a small snake in our fire pit this morning. It’s body is full for being so small. It’s probably over a foot long. He moved it to the back in the leaves and took pictures. It went into it’s strike mode of which he got several pictures. I haven’t seen anything like this one online. I agree with a previous writer that some pictures of Michigan snakes would be very helpful. I have dogs and wouldn’t want to jeopadize their safety.
May 04, 2007
8:47a.m.
May 29th, 2007 at 11:39 am
Debra of Lewiston Said:
I am curious about the population of snakes in Michigan’s upper pennisula. Because it tends to me cold there does that decrease the reproduction of the snakes?
July 19th, 2007 at 1:37 pm
amber of geneseo ny Said:
Hi we found a small baby snake that looks like the one you described. It shakes its tail like it has a rattle but it is too small yet. The strange thing is that we live in western ny, but in a swampy area. i have a picture, can send. Are these snakes endangered?
June 18th, 2008 at 1:48 pm
Holly Smith of Ann Arbor Said:
When I was a child, my good friend was killed by a Massasauga bite. The young girl was Nora Armitage of Grosse Pointe Park, aged about 11. Her family was vacationing in the northern lower peninsula at the time and, as I remember, there was some delay in getting her to medical help. The year would have been about 1962 and was probably reported in the Detroit Free Press and/or the Grosse Pointe News.
August 4th, 2008 at 11:05 pm
Tom Beauvais of Ann Arbor Said:
Sounds similar to a report from May-June 1964 Canadian Audubon with ref to 10-yr old girl from Detroit area staying at famly’s cottage on Cognashene island in Georgian Bay-she was bitten June 1962 and died within 24 hours due to delayed symptoms.
Only records for Michigan from my research show a 6-yr old boy, Samuel Mosher dying July 6, 1848 (Everts & Abbott’s Hist Hillsdale Co, p 154, 156)—I assume near Mosherville. His father was a Michigan legislator.