This ‘fairyland’ bog is a beacon for winter birders – and a sponge for the climate

7 Mar 2026 · 18 min · 6 chapters

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Podcast Episode Summary: This ‘fairyland’ bog is a beacon for winter birders – and a sponge for the climate

Podcast Information

  • Title: Here & Now Anytime
  • Hosts: Robin Young, Scott Tong
  • Producer: Chris Bentley
  • Description: Provides essential news and memorable stories, along with special series and behind-the-scenes content from NPR and WBUR.

Episode Overview In this episode, Chris Bentley dives into Minnesota's Sax Zim Bog, a pivotal location for birdwatchers seeking owls and rare songbirds. The episode explores the significance of this unique habitat, the impact of climate change on bird populations, and ongoing conservation efforts.

Key Themes and Discussions

  1. The Allure of Sax Zim Bog
  2. Location Significance: Attracts birders globally, particularly in winter for sightings of owls, hawks, and rare songbirds.
  3. Visitor Experience: Birders like Peter Burke visit annually for specific bird species, emphasizing the joy and humbling nature of observing these creatures.
  1. Climate Change Impact
  2. Vulnerabilities of Birds:
  3. Species like the Canada jay experience food scarcity due to warming winters affecting food preservation.
  4. There's a noted decline in bird productivity and population, especially at the southern edge of their range.
  5. Long-term Consequences: Anticipation of a gradual shift in bird communities as climate change continues.
  1. Conservation Efforts
  2. Sax Zim Bog's Role:
  3. Home to 4,000 species, the bog is a crucial ecosystem for carbon storage.
  4. Historical misconceptions led to it being considered "useless swamp," highlighting a need for appreciation and protection.
  • Restoration Initiatives:
  • Re-wetting peatlands could significantly enhance carbon storage, likened to removing 1.5 million cars from the road.
  • Conservationists, including the Friends of Sax Zim Bog, work to protect and restore these habitats.
  1. Innovative Research Techniques
  2. Listening Devices: Volunteer naturalists like Rich Hoeg have installed devices across northern Minnesota to capture bird sounds 24/7.
  3. These devices aid in identifying elusive bird species and contribute to scientific studies on bird behavior and populations.
  • Bioacoustics Findings: Research utilizes AI to analyze recordings, revealing insights into bird communication and migration patterns.

Notable Quotes

  • “This is an old-growth forest right here... it looks like a stunted, scraggly part of the taiga.”
  • “Sphagnum moss is the unsung hero of carbon sequestration.”
  • “For me, it's been an existential crisis... what is this going to be like in 100 years or 200 years?”

Personal Anecdotes

  • Chris Bentley shares his experiences while exploring Sax Zim Bog, showcasing the surprising beauty and ecological importance of this habitat.
  • Robin Young discusses a humorous mispronunciation experience, adding a light-hearted conclusion to the episode.

Conclusion The episode encapsulates the intersection of birdwatching, climate research, and conservation efforts at Sax Zim Bog. It highlights the urgency of protecting these ecosystems in light of climate change while celebrating the joy of nature and birding.

Additional Resources

  • BirdNet App: An AI-powered tool for identifying bird calls, useful for both enthusiasts and researchers.
  • Nature Conservancy Studies: Insights on the ecological impacts of peatland restoration and its carbon storage potential.

For further exploration of bird conservation and the unique environment of Sax Zim Bog, listeners are encouraged to engage with related content and conservation initiatives.

Written by AI. May contain mistakes. Listen to the episode to check what was said.

Chapters

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The Allure of Sax Zimbab

0:52 to 2:16

Chris shares his experience exploring Sax Zimbab and the excitement of birdwatching.

“This is Here and Now Anytime from NPR and WBUR.”

Birding with Experts

2:16 to 5:00

Chris engages with birding experts about winter birding experiences.

“I guess I'm becoming a bit of a birder myself as I get older, which is a reflection for another day maybe.”

Climate Change & Bird Habitats

5:00 to 7:24

Discussion about how climate change is affecting bird populations and habitats.

“Boreal birds may seem chill, Stenso says, but their lifestyle is threatened by the warming climate.”

Innovative Bird Monitoring

7:24 to 12:00

Exploring the use of technology and listening devices to study bird populations.

“A study by the Nature Conservancy found re-wetting peatlands in Minnesota would soak up so much carbon it'd be like taking almost one and a half million cars off the road, says the Nature Conservancy's Jim Manolis.”

Mispronounced Words Segment Introduction

14:01 to 15:15

The hosts introduce a segment focusing on mispronounced words, sharing personal anecdotes.

“Bruce Springsteen said something that struck me as very apropos to my situation.”

Listener Confessions on Mispronunciation

15:15 to 17:25

Listeners share their own mispronounced words and humorous stories about them.

“We asked around our home station, WBUR in Boston, for some confessions, beginning with Morning Edition host Tiziana Dearing and her mispronounced word.”
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Transcript

Automatic transcript. May contain errors.

0:00Rich Hoeg:Support for Here and Now Anytime comes from MathWorks, creator of MATLAB and Simulink software for technical computing and model-based design. MathWorks, accelerating the pace of discovery in engineering and science. Learn more at mathworks.com. WBUR Podcasts, Boston.

0:25Chris Bentley:When there's a lot going on in your life or in the world, it can be good to get outside if you can. Even some unassuming places are full of wonder.

0:36Rich Hoeg:Most people think of this as a useless swamp. 4 ,000 species. Magically useless swamp.

0:52Chris Bentley:This is Here and Now Anytime from NPR and WBUR. I'm Chris Bentley.

1:01Chris Bentley:We've got a special bonus episode for you today. Off the news, as we say in the biz. But some things are timeless. For instance, who hasn't had the experience of saying a word out loud that you've only read and been met with a gallery of blank stares? and then realizing, or more likely being told, you've been saying it wrong in your head the whole time. There's no shame in mispronouncing a word. Even Stephen King does it.

1:28Rich Hoeg:I used to think those animals that run around out west were coyotes. I used to think that the parts of a story were dentals. They are actually details.

1:40Chris Bentley:Coming up in about 10 minutes, Robin Young shares one of her most embarrassing moments on air. But first, I was up in northern Minnesota in February, crunching through snow, wrapped up like a mummy in my ski clothes, looking for moose. That was for another story we had on Here and Now Anytime. If you missed it, look back in the feed to February's installment of our environmental series Reverse Course. And while I was there, I learned about a place famous among birders, chasing owls, hawks, and rare songbirds from Canada. It's called Sax Zimbab. I guess I'm becoming a bit of a birder myself as I get older, which is a reflection for another day maybe.

2:24Chris Bentley:But I wasn't IDing birds on my own. I visited with a team of expert guides from Minnesota.

2:33Rich Hoeg:Great Jake, great Jake, right there. Oh yeah.

2:41Chris Bentley:Nothing stops a chat between birders faster than a flash of feathers in the sky.

2:46Rich Hoeg:That's Canada Day. That's one of the birds that nests here.

2:51Chris Bentley:That's Sparky Stensos. Pishing, or calling, the bird, he founded Friends of Saxim Bog for moments just like this. Stensos is one of my guides on a February walk through this unique habitat about an hour north of Duluth, which draws wildlife enthusiasts from all around the world this time of year, people like Peter Burke from Colorado. I'm owner of Rocky Mountain Birding, and I bring a group here every February. So you've got a lot of birds in Colorado. Why come to Minnesota? For the owls.

3:24Rich Hoeg:I come here for the owls. And we'll be looking out for the short-eared owls, long-eared owls, sawwood owls, and if we're really lucky, a boreal owl.

3:34Chris Bentley:What's it like to see an owl?

3:36Rich Hoeg:Humbling. Yeah, I mean, they're these just little feather balls that can survive minus 30 up here like it was nothing. Owls are awesome. And they look right back at you in the eye.

3:47Chris Bentley:We human visitors to Sac Zimbog have to bundle up, but it's a balmy getaway for birds coming from Canada.

3:55Rich Hoeg:This is the Arctic Riviera. The Arctic Riviera, nice.

3:58Chris Bentley:The resorts in this Arctic Riviera include a patch of wizened evergreens that lurch out of the squishy earth.

4:06Rich Hoeg:Like some of these 30-foot tall trees may be 100 years old. This is an old-growth forest right here. It kind of blows people's minds when you say this is an old-growth forest because it just looks like a stunted, scraggly part of the taiga in northern Canada or something.

4:20Chris Bentley:What seems like an unassuming landscape in winter is teeming with activity for birders who know where to look.

4:34Chris Bentley:But even eagle-eyed birders can't spot everything. So the Friends of Saksim Bog recently installed homemade listening devices to capture bird calls around the clock and analyze the sound with the help of AI. It's helped them study elusive visitors like Connecticut warblers and northern saw-wet owls.

5:00Rich Hoeg:These boreal birds are so chill. They don't care too much about humans.

5:04Chris Bentley:Doesn't boreal mean chill in Latin?

5:06Rich Hoeg:I think that is correct, yes.

5:08Chris Bentley:Boreal birds may seem chill, Stenso says, but their lifestyle is threatened by the warming climate. Take that Canada jay, whose flyby stopped us in our tracks earlier.

5:19Rich Hoeg:They're very vulnerable to climate change because what they do is they cache food in the winter in preparation for the breeding season where they need more energy.

5:26Chris Bentley:Alexis Grindy of the University of Minnesota is another one of my guides on today's nature walk.

5:32Rich Hoeg:But as the winters warm up, some of those things that they cache, like chunks of meat from a dead deer on the road, for example, those will rot. And so they don't have as much food stores basically as they go into the breeding season. So we're seeing declines in overall productivity and declines in population, especially at the southern edge of the range.

5:51Chris Bentley:Grindy says it's just the start of a northward shift in bird communities that will likely continue for decades. Which is why conservationists are fighting to protect refuges like Saxim Bog.

6:03Rich Hoeg:We've recorded over 4 ,000 species of plants and animals in the Saxim Bog. And most people think of this as a useless swamp, right? 4 ,000 species. Magically useless swamp.

6:17Chris Bentley:Deeper into the woods, we step onto a boardwalk to carry us over a landscape that's rippled with three-foot hummocks. It looks like the whole bog has goosebumps. In summer, this is a lush grove of orchids, carnivorous plants, and thick mats of sphagnum moss.

6:34Rich Hoeg:Which is amazing, and it's sort of like a Lord of the Rings situation where you feel like you're in a fairyland world. It's so thick, and it's cushy, and you can lay on it. And then you go down, and it's just wet. So there's just this amazing sort of deep layer of it.

6:48Chris Bentley:If this wetland is a fantasy world, as Grindy says, Its sorcery is scrubbing climate pollution. Stensos calls sphagnum moss the unsung hero of carbon sequestration. But back in the frontier days, white settlers initially saw it as unfarmable wasteland. So they dug ditches to drain the bog.

7:09Rich Hoeg:Everything sort of starts decaying, I guess, at a faster rate and releasing that carbon. The trees that are adapted for those environments can't grow there anymore. So we plug the ditches, the water comes back, and now it's sort of the game of how do we restore the entire ecosystem function.

7:24Chris Bentley:A study by the Nature Conservancy found re-wetting peatlands in Minnesota would soak up so much carbon it'd be like taking almost one and a half million cars off the road, says the Nature Conservancy's Jim Manolis.

7:36Rich Hoeg:It's just one of our greatest opportunities for carbon storage. They cover about 3 % of the Earth's surface but store about 30 % of the world's carbon.

7:48Chris Bentley:On our way out of the woods, we spot hairy and downy woodpeckers, red-breasted nuthatches, wild turkeys, an evening grosbeak with black and white wings and a golden swish over its eyes like it's furrowing a bleached unibrow, and...

8:08Rich Hoeg:Nice pine grosbeak right there.

8:10Chris Bentley:Oh, pine grosbeak.

8:11Rich Hoeg:Oh, that red... Really beautiful male. They're a fun winter visitor that everybody loves to see.

Read the full transcript

8:19Chris Bentley:Sparky Stensas hopes all those birds will keep visiting for generations to come. But he says as the climate changes, the cast of characters taking wing at Sac-Zim Bog is going to change too.

8:31Rich Hoeg:For me, it's been an existential crisis, you know, buying up all this beautiful bog, lands, peatlands. You know, what is this going to be like in 100 years or 200 years or whatever? And I don't know, but we're purchasing and protecting habitat. Whatever it is, it's going to be habitat.

8:51Chris Bentley:It makes you feel a little better thinking that it's going to be home to something. Maybe not the same species that it is today. Absolutely. For now, at least, it's home to 4 ,000 species, including rare birds. And countless people flocking to northern Minnesota to see them.

9:15Chris Bentley:I was curious about those listening devices installed at Saksim Bog, so when I got home, I called up Rich Hoag. He's a naturalist in Duluth and volunteer with Sparky Stensos' group, Friends of Saksim Bog. And he's the one who built some of those devices by sticking together a microphone and the tiny computer board called Raspberry Pi. It connects to BirdNet, the AI-powered database of bird songs run by the Cornell Lab of Ornithology that powers the app Merlin, which you might have used if you've ever wanted to shazam a bird call. If not, check it out sometime. Merlin is free and pretty cool to use.

9:53Chris Bentley:Hogue put all that stuff into a rugged box with a data storage card, and voila, you've got what he calls BirdNet Pi.

10:01Rich Hoeg:I'm a retired techie, and I had always been intrigued with birds here in northern Minnesota. I had pet birds. I was the person that had to fill the bird feeders we had at our house. And when I was a kid, even when I was like seven or eight years old, I was allowed to go traps and around the forest by myself and be home by supper time.

10:25Chris Bentley:In his retirement, Hogue is still exploring the woods. He's got several of those listening devices planted all over the Arrowhead region of northern Minnesota that stretches along the shore of Lake Superior, including one in his own backyard. He says bioacoustics have revealed a hidden world around him. Like when his home device told him he had sandhill cranes in town.

10:48Rich Hoeg:And I go, no way. This thing is totally messed up. Because I live in the boreal forest and there's just no way a sandhill crane would be there. But I went and listened, and I realized the device actually heard sandhill cranes migrating overhead that night. And I've had the same thing happen with golden-eyed ducks, common loons. And so I actually get identifications for birds that are flying overhead, if it's relatively quiet out. You know, if it's windy, then not. But still, I've been really surprised.

11:23Chris Bentley:Recordings from Saks Zimbog are also informing scientific studies at the Owl Research Institute in Montana and the Natural Resources Research Institute at the University of Minnesota, where Alexis Grindy from The Nature Walk earlier says listening devices can log birds that are hard to see, like nocturnal owls. With multiple units recording in different locations, Grindy says they can even pinpoint which trees birds are using, how their migrations might be shifting, and how their fledgling young are doing when they're too small to leave the nest.

11:56Rich Hoeg:We can answer all those questions just by listening to birds, which is pretty cool.

11:59Chris Bentley:So it's just like a microphone you put out in the box?

12:01Rich Hoeg:Essentially, it's like an old-school boombox, and you strap it up. It's really durable. The batteries last a pretty long time. And then the complicated part comes when you take it back to the lab and you have to run it through all these different models to look for finders and say, is that a road? Is that an owl? What exactly is the noise that's coming through? they're saying different things right some calls mean one thing other calls mean other things so you can understand what the sort of conversations that the birds are having throughout the breeding season and make some inference that way

12:29Chris Bentley:as birds are having conversations yes definitely they're always having conversations you got some of that video but they communicate with each other they

12:37Rich Hoeg:give warning systems to each other so the bird community itself we sometimes just think about males singing to attract females but they actually are communicating with each other all the time. Here's where the food is. Let's go together. There's a predator over here. One predator eats one bird. That might be good, but also it's more likely that the neighbors are going to get eaten too. So there's a lot of value in sort of cooperating in a neighborhood, if you're a bird probably.

13:03Chris Bentley:I had that conversation with Grindy while we were trying to spot a northern hawk owl. We didn't find one then, but I did see one another time in a wilderness area nearby that I later learned was one of Rich Hoag's sites for monitoring as well. He often records northern hawk owls there, he says, and imagines them scanning the frozen forest with their yellow eyes, speaking a language meant for non-human ears.

13:35Chris Bentley:We'll be right back. We're coming in from the cold for this last story on today's show. I'm going to hand it over to Robin Young for a few minutes.

13:47Rich Hoeg:We've spoken with author Stephen King many times over the years. He's a favorite guest. Most recently, he spoke of his children's book, Hansel and Gretel, a reimagining of the classic tale. But he also became reflective about getting older and having more to write. Bruce Springsteen said something that struck me as very apropos to my situation. Say what? Stephen King went on to speak eloquently about Bruce Springsteen, who said, by the way, that basically life is short. We finished the taped interview. It was lovely. And then this. Okay, I'm going to ask you one thing. I once said on the air, I felt mizzled.

14:26Rich Hoeg:And of course, it's misled. So it's in that spirit. I think you meant to say apropos. Apropos, and what did I say? Apropos. Apropos. Which is now one of our favorites. When I was a kid, I used to think that those animals that run around out west were coyotes. Yeah, I used to think that the parts of a story were the dentals. They are actually the details. Hey, we have a segment here. Can we ever use that for our next recurring segment? Absolutely. Oh, yeah. I mean, it helps people. Use Koyot. Don't worry. We gave Stephen a chance to correct himself, and here we are, our semi-regular segment on mispronounced words.

15:14Rich Hoeg:Reminder that Stephen and I and all of you out there are not alone. We asked around our home station, WBUR in Boston, for some confessions, beginning with Morning Edition host Tiziana Dearing and her mispronounced word. Homage, which I thought was hummage. And I found out I was wrong the first time I heard somebody say homage. And I was like, what is that? And they tried to explain it to me, and I said, that's hummage. And they said, oh, honey. Vigilant. I am convinced that it should be said villigent. Demon, but in my head I read it as demon. So like if there was a book called The Demon Hunter, my brain would say The Demon Hunter.

15:59Rich Hoeg:There was a band called Behemoth, which I read somewhere and said, I wonder what this band Behemoth is all about. Last year I was recording something and I said that something would be my demise. What I do know is that my coworkers will never let me live this down. It will probably be my demise. Bedraggled, I think, is close enough. I said it and probably still say it in my mind. Bedraggled. Bedraggled. You wake up in bed, you're looking a little raggedy. Bedraggled. Detritus. It's detritus. But I was ready to do a newscast when an NPR newscaster said detritus. I was seconds away from sending a little correction when I thought that maybe I should include the correct pronunciation.

16:50Rich Hoeg:And I looked it up and touched my tail between my legs.

16:55Chris Bentley:Whom amongst us hasn't mispronounced a word? My moment of shame was when I was pretty young, asked to read aloud from a book in class, and said, determined, instead of determined. I still remember the laughs, even from the teacher. But hey, there's no shame. Even Stephen King does it. There's lots more to that conversation. Robin even brings in two expert pedants of pronunciation, who wrote the book on it, literally. You can find that conversation about mispronounced words at hereandnow.org.

17:35Chris Bentley:But that'll do it for us today. Here and Now, Anytime comes from NPR and WPR Boston. Today's stories were produced by Karen Miller-Metson and me, Chris Bentley. Today's editors were Todd Montt, Michael Scotto, and Sheep O 'Feary. Technical direction from Caleb Green and James Trout. I wrote the theme music with Max Liebman and a veritable behemoth of audio engineering and musicianship, Mike Moschetto. Our digital producers are Alison Hagen and Grace Griffin. and here at NOW's executive producer is Alan Price. Thanks for listening. We'll be back with you soon.

18:32Rich Hoeg:options and 24-7 customer support all on one platform. Learn more at easycater.com. This message comes from Warby Parker. Prescription eyewear that's expertly crafted and unexpectedly affordable. Glasses designed in-house from premium materials starting at just$95, including prescription lenses. Stop by a Warby Parker store near you. Support for this podcast and the following message come from Nutrafol, the first and only hair growth supplement to be NSF certified for sport. For a limited time, receive$10 off your first month subscription and free shipping. Visit Nutrafol.com and enter the promo code NPR.

From the publisher
Even when it's freezing and covered in snow, Minnesota's Sax Zim Bog attracts birders from around the world. They flock there hoping to spot owls, hawks and rare songbirds that spend most of their time in northern Canada. Many of those birds are feeling the pressure of the warming climate, however, so local scientists and wildlife enthusiasts are working to conserve their habitat, which also happens to be a peatland adept at storing carbon. Here & Now's Chris Bentley reports. Then, volunteer naturalist Rich Hoeg recently installed listening devices across northern Minnesota to record elusive species of birds. Some of his recordings are informing scientific studies of owls, and surprising even lifelong birders.

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