More than a hundred volunteers explore Teton wilderness for annual ‘Moose Day’

Numbers from the search help Wyoming’s Game & Fish Department get a more accurate picture of the health of the local moose herd.
A volunteer group found a cow, or a female moose, off the Cache Creek trail. (Mitchell McClosky)

by | Mar 1, 2023 | Environment

 

Len Carlman and Laurie Bay cross country skied through the cottonwoods south of Wilson, near the Snake River. 

They had just spotted one moose eating the shrubs about a hundred yards away.

“Moose on the move, walking slowly, going from one patch of willows or small cottonwoods to another,” Carlman said. “Let’s go see what’s going on.”

Carlman and Bay found a bull, or a male moose, about ten minutes into their journey on the Snake River Ranch south of Wilson. (Hanna Merzbach/KHOL)

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Carlman and Bay were just two of more than hundred volunteers spread out through the county last Saturday participating in the Jackson Hole Wildlife Foundation’s annual Moose Day. 

The Game & Fish Department counts moose every year from a helicopter, but these volunteers often travel on cross country skis and snowshoes in more developed areas to find moose the agency can’t see. 

Carlman and Bay edged closer to the moose, keeping their distance. 

“Winter is a period of slow starvation for moose,” Carlman said. “They’re just losing calories and body fat. And they don’t need any more hassle than they already get from the hardships of winter. We’ll get a little closer, but they’ll come a time when we know that’s enough.”

Tracking the Jackson herd

Last year, volunteers and Game & Fish found 326 moose, which is about 70% smaller than the herd size just a few decades ago. 

The Jackson moose population has declined steadily since the 1980s but has seemed to stabilize in recent years. (Wyoming Game & Fish Department)

Wildlife biologist Aly Courtemanch said the decline is due to several factors: habitat loss, an expansion of predators, vehicle collisions and climate change. In the winter, moose can become stressed at temperatures above 23 degrees Fahrenheit.

“Moose really evolved in those northern latitudes, and they don’t do very well in warm temperatures,” Courtemanch said in a recent presentation preparing volunteers for Moose Day.

Population counts help the department make decisions about hunting tags and wildlife crossings. Knowing where moose congregate also informs the agency’s comments on proposed developments.

‘A simple thing in a simple place’

Volunteers like Carlman and Bay also looked for signs of disease, such as hair loss or missing tips of the ears, which have been observed in the local herd. 

Carlman and Bay said getting to spend time with others who care about wildlife is one of the many draws of Moose Day. (Hanna Merzbach/KHOL)

Back south of Wilson, Bay recorded her observations on a nearby moose, which had a thick fur coat.

“They don’t always look so good in the winter,” Bay said. “[He] looks good, which is great.”

She said it’s the people and the impact of the work that brings her out to Moose Day again and again.

“I mean this is a simple thing in a simple place that matters,” Bay said. “You see the results of your work and that’s a rare thing I think anymore.” 

Volunteers ended up counting about 112 moose over the weekend, though numbers are still being finalized. Game & Fish will release the official tally sometime next week.

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About Hanna Merzbach

Hanna is KHOL's senior reporter and managing editor. A lot of her work focuses on housing and local politics, but also women's health — and whatever else she finds interesting. You can hear her reporting around the country and region on NPR, Wyoming Public Radio and community radio stations around the west. She hails from Bend, Oregon, where she reported for outlets such as the Atlantic, High Country News and Oregon Public Broadcasting. In her free time, you can find Hanna scaling rock walls or adventuring in the mountains.

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