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Deer hunters often spend hours in the woods sometimes over several days, waiting for deer. 

The Minnesota Department of Natural Resources believes what hunters see as they wait can be valuable data to help manage the deer population. 

"This allows hunters to become actively involved in deer management in Minnesota,” said Eric Michel, deer project leader for the farmland region of Minnesota. 

"Using citizen science, working with our deer hunters, allows us a much further reach than we would have otherwise. Obviously, we can't be in the field across the state all the time, so tapping into this resource with our hunters allows us to obtain so much more data from a much larger spread across the state,” he said. “It's something that we're trying to figure out how to really capitalize on.”

The problem for the DNR is that hunters are not taking the bait. 

Last year just 49 hunters out of more than 400,000 who bought a hunting license volunteered to fill out observational surveys about animals they saw in the field. 

The agency is trying to make it easier. The survey started out targeting only bow hunters, who tend to spend more time in the woods than those who hunt with firearms. Now any deer hunter in Minnesota can participate. And Michel said the survey is easily accessible on a smart phone. 

DNR seeks more sustainable funding

Overall participation is falling

The survey asks hunters to log the hours they spend in the woods and the deer they see during that time, their sex and whether they are adults or fawns. If enough hunters participate, the data can help the DNR validate population trends over time. 

"And it will also ask you for some other observations,” said Michel. “Information about wild turkeys, black bears, coyotes, bobcats, gray wolves, fishers, grey fox and badgers. And we're collecting that information to help us get a better understanding of the distribution of those species across the state." 

In 2019, a total of 2,180 Minnesota hunters returned surveys. Since then participation plummeted to 132 in 2020 and fell below 50 last year. 

Iowa has one of the longest running hunter data collection projects in the country, and reports consistent participation year after year. 

The state chooses 9,000 archery hunters each year for the survey, said Tyler Harms, the Iowa DNR wildlife biometrician, or statistics expert. 

"Of those 9,000 hunters, we typically get between 2,000 and 2,500 surveys back, which is about a 25 percent response rate on on average," said Harms.

Those responding hunters log, on average, between 70,000 and 90,000 observation hours in the woods each year. “Which is just a massive amount of data that we can use to then inform population trends," said Harms.

"If we were to have our staff complete this survey, we estimate it would cost about $2.5 million per year to get that much observation time in the field,” he said. “And currently the survey costs us about $15,000 to implement."

This is the 17th year for the Iowa hunter survey. It was started to get more information about secretive often unseen species like bobcats and badgers. 

But it also provides important validation about deer populations across the state. 

It also turns up the occasional surprise, like when a hunter reported a mountain lion walking under his tree stand a couple of years ago.  

And Harms finds many hunters are eager to participate.

"A lot of hunters when I've chatted with them about this survey, their response is, "well, I collect this information anyway, so I might just as well give it to you,’” he said.  

Minnesota hopes to copy that success by reaching out to more hunters via email and social media, encouraging them to become citizen scientists for a few days each year.

Dan Gunderson

Author

The Minnesota DNR is trying to encourage more deer hunters to join a citizen science data collection project.  The hunter observations can provide valuable information about wildlife populations trends, but few Minnesota hunters are participating. 

The Minnesota DNR is trying to encourage more deer hunters to join a citizen science data collection project.

DNR aims to capture hunter observations for science

Misty Stoll scans the area as she waits for a deer to pass her blind.

Dan Gunderson | MPR News 2017

Blake Legred, 14, climbs down from his deer stand.

DNR aims to capture hunter observations for science

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