Vertebrates Archives - Page 23 of 122

May 1, 2023March 4, 2026

Mountain Lions Are Keystone Providers for Birds!

Cougar or Mountain Lion(Felis concolor). Courtesy US FWS — Mountain Lion
*Felis concolor*
Courtesy US FWS
Larry Moats, Photographer

Cougar or Mountain Lion
*Felis concolor*
Courtesy US FWS

Yellow-billed Cuckoo
*Coccyzus americannus*
Courtesy & © Eric Peterson, Photographer

When we think about World Migratory Bird Day, we often think about providing for their needs with water, bird feeders, and native plants, and hopefully we are keeping cats indoors and taking steps to prevent the lethal danger of window-collisions. We may even think about the importance of sponge city landscaping and beaver dams to slow and store snowmelt runoff, but it is the Mountain Lion which has the unique distinction of being a keystone provider ranked as the top vertebrate feeder of birds – in fact they “feed more mammals and birds than any other predator, increasing the number of animal interactions – the links in food webs so essential to maintaining ecosystem resilience. And they are ecosystem engineers on top of this as well.”
(1) Researchers have found that large carcasses create essential habitat for carrion-dependent beetles – these are not just food for beetles, but the very places beetles spend their lives, hiding from predators, seeking mates, raising young, and morphing from larvae [lahr-vee] into adult forms which disperse in search of the next carcass to begin the cycle all over again. (2)The food web gets to the very heart of bird migration, and the very real challenge of ensuring a future in which people and birds can thrive with dwindling habitat resources essential for survival.

Consider the Yellow-billed Cuckoo [koo-koo], one of the World Migratory Bird Day Ambassador species, to highlight the importance of water and riparian habitat for birds. A long-distance migrant, the Yellow-billed Cuckoo breeds in the United States, Mexico, and the Caribbean, and migrates through Central America to reach its wintering grounds in South America. It seeks wooded habitats with water nearby, where it feasts mostly on insects, especially caterpillars, during the spring and summer, transitioning to a more fruit- and seed-heavy diet in the fall and winter.

The Yellow-billed Cuckoo was selected for this year’s World Migratory Bird Day campaign to help shed light on the decline of riparian habitats along our rivers, streams, and freshwater lakes, particularly in the American West, where species that rely on these areas are experiencing population declines and are in possible danger of extirpation from some states. These western riparian species include Summer Tanager, Yellow Warbler, Willow Flycatcher, Yellow-breasted Chat, and Yellow-billed Cuckoo. Loss of native forest to farmland, housing, and other development has led to significant population declines in these species, especially in the case of the Cuckoo, which relies on large patches of streamside forest for breeding.

The Yellow-billed Cuckoo is becoming an increasingly rare bird in the American West. We need to increase awareness and encourage decision makers to explore ways to protect riparian areas, remove invasive species, restore habitat, and conserve water. World Migratory Bird Day 2023 aims to contribute to these efforts by highlighting the importance of water conservation and habitat management for migratory birds, and by providing resources to help promote these important issues. Bird Day is every day, but especially mid-May and mid-October. Learn more at migratorybirdday.org, and learn more about how to conserve water for sustaining bird life!

I’m Hilary Shughart with the Bridgerland Audubon Society, and I am Wild About Utah!

Credits:
Images: Mountain Lion images Courtesy US Fish & Wildlife Service, Larry Moats, Photographer
Yellow-beaked Cuckoo, Courtesy & Copyright, Eric Peterson, VikingPhotographyUtah
Featured Audio: Courtesy & Copyright © Kevin Colver, https://wildstore.wildsanctuary.com/collections/special-collections/kevin-colver
Text: Hilary Shughart, President, Bridgerland Audubon Society
Additional Reading: Hilary Shughart and Lyle Bingham, https://bridgerlandaudubon.org/

Additional Reading

WildAboutUtah pieces by Hilary Shughart, https://wildaboututah.org/author/hilary-shughart/

“In research recently published in the prestigious journal, Oecologia, we show that mountain lions are ecosystem engineers that create essential habitat for carrion-dependent beetles. It is the first research to show that an apex predator plays the role of engineer. In collaboration with graduate researcher, Josh Barry, and Dr. Melissa Grigione at Pace University, we collected and identified 24, 209 beetles across 18 sites, representing 215 unique beetle species. The carcasses abandoned by mountain lions were not just food for beetles, but the very places beetles spent their lives, hiding from predators, seeking mates, raising young, and morphing from larvae into adult forms that dispersed in search of the next carcass to begin the cycle all over again.”
Barry, J.M., Elbroch, L.M., Aiello-Lammens, M.E. et al. Pumas as ecosystem engineers: ungulate carcasses support beetle assemblages in the Greater Yellowstone Ecosystem. Oecologia 189, 577–586 (2019). https://doi.org/10.1007/s00442-018-4315-z

Mountain Lions as Ecosystem Engineers, MarkElbroch.com, , [Accessed April 29, 2023]

Mountain Lion Conservation, MarkElbroch.com, , [Accessed April 29, 2023]

EOC 206: Mark’s Cougar Conundrum, Eyes on Conservation Podcast, https://podcasts.apple.com/us/podcast/the-eyes-on-conservation-podcast/id916341600 [Accessed April 30, 2023]

Elbroch, Mark, The Cougar Conundrum, Sharing the World with a Successful Predator,, Island Press, August 2020, https://islandpress.org/books/cougar-conundrum [Accessed April 30, 2023]

Panthera USA, https://www.panthera.org/ [Accessed April 30, 2023]
Mark Elbroch, Ph.D., Panthera USA, https://panthera.org/mark-elbroch-phd [Accessed April 30, 2023]

MarkElbroch.com, [Accessed April 29, 2023]

Wiggins, D. (2005, March 25). Yellow-billed Cuckoo (Coccyzus americanus): a technical conservation assessment.
[Online]. USDA Forest Service, Rocky Mountain Region. Available: https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/stelprdb5182002.pdf [Apr 30, 2023].

Yellow-billed Cuckoo Coccyzus americanus, All About Birds, Cornell Lab of Ornithology, Cornell University, https://www.allaboutbirds.org/guide/Yellow-billed_Cuckoo/

May 13 & October 14, World Migratory Bird Day 2023, WATER, UNEP/CMS Secretariat and UNEP/AEWA Secretariat, https://www.worldmigratorybirdday.org/

April 24, 2023March 4, 2026

Great Salt Lake Mirabilite Mounds

Mirabilite Mounds in the Great Salt Lake Courtesy & © Mary Heers, Photographer — Mirabilite Mounds
in the Great Salt Lake
Courtesy & © Mary Heers, Photographer

Back in October 2019, the ranger at the Great Salt Lake State Park began to notice a white mound forming on the sand flats behind the visitor center. The white mounds turned out to be hydrated sodium sulfate – known as mirabilite- which was being carried to the surface by the upwelling of a fresh water spring. Since the 1940’s geologists have known that in this area, 30 inches below the surface, there was a 3 – 6 foot thick shelf of mirabilite. They knew about the fresh water springs What was new was cold air. Since this stretch of sand was no longer underwater, the mirabilite carried to the surface stayed there as crystals, piling up on each other, puddling and spreading out. One mound rose to the height of 3 feet.

Mirabilite Springs in the shadow of the Kennecott Smelter stack Courtesy & © Mary Heers, Phorographer — Mirabilite Springs in the shadow of the Kennecott Smelter stack
Courtesy & © Mary Heers, Phorographer

When the mounds started to form again this winter, I jumped at the chance to to go and take a look. I must admit at first I was a little underwhelmed at the size, perhaps because the Kennecott Smelter Stack nearby dominates the view, rising to 1,215 feet – roughly the same height as the Empire State Building. But the park ranger got my attention when she told us that mirabilite mounds have only been seen in four places in the entire world – the Canadian Arctic, Antarctica, Central Spain, – and Utah. Just seeing them turns out to be a rare winter treat. When the air warms to 50 degrees, the mirabilite will crumble into a fine white powder and disappear.

Robert Smithson's Spiral Jetty (1970) Courtesy & © Mary Heers, Photographer — Robert Smithson’s Spiral Jetty (1970)
Courtesy & © Mary Heers, Photographer

My mind flashed back to a trip I’d made to the other end of the lake ten years ago. I’d just graduated from the docent training class at the Utah Museum of Fine Art, and a friend and I wanted to celebrate by having High Tea at the center of the Spiral Jetty, a 1,500 foot, long, 15 foot wide coil of black basalt rock – a stunning example of land art jutting out from the northern shore. We’d been warned that it might be underwater, but when we arrived we were delighted to find we could easily walk to the very center of the spiral as the lake water gently lapped at the edges of our shoes. We clinked our tea cups, and toasted the greatness of the lake.

Suddenly I wanted to see the jetty again, so I hopped in my car and drove to the remote site. I saw the Spiral Jetty was now high and dry. Drifting sand had already started to bury parts of it. The water’s edge was now over 300 yards away. I thought of the millions of migratory birds that would be arriving in the spring to rest and feast on the tiny treasures of the lake, the brine shrimp. I hoped a smaller lake would still be enough for all of them.

The recent words of the director of Friends of the Great Salt Lake, Lynn de Freitas, rang in my head: “The Great Salt Lake is a gift that keeps on giving. Just add water.”

This is Mary Heers and I’m Wild About Utah.

Credits:
Photos: Courtesy & Copyright Mary Heers, Photographer
Featured Audio: Courtesy and Copyright Kevin Colver https://wildstore.wildsanctuary.com/collections/special-collections/kevin-colver
Text & Voice: Mary Heers, Generous Contributor, Utah Public Radio
Additional Reading: Lyle Bingham, Webmaster Bridgerland Audubon Society

Additional Reading

Mirabilite Spring Mounds Near Great Salt Lake Marina, Utah Geological Survey (UGS), Utah Department of Natural Resources, https://geology.utah.gov/popular/general-geology/great-salt-lake/mirabilite-spring-mounds/

Mirabilite, Mindat.org, Hudson Institute of Mineralogy, https://www.mindat.org/min-2725.html

Tabin, Sara, Rare salt formations return to Great Salt Lake’s shores; take a tour while they last, The Salt Lake Tribune, Jan. 13, 2021, https://www.sltrib.com/news/2021/01/14/rare-salt-formations/

USGS 412613112400801 The Great Salt Lake at Spiral Jetty, Site Map for the Nation, U.S. Geological Survey(USGS), U.S. Department of the Interior, https://waterdata.usgs.gov/nwis/nwismap/?site_no=412613112400801&agency_cd=USGS

Case, William, GEOSIGHTS: PINK WATER, WHITE SALT CRYSTALS, BLACK BOULDERS, AND THE RETURN OF SPIRAL JETTY!, Survey Notes, v. 35 no. 1, Utah Geological Survey (UGS), Utah Department of Natural Resources, January 2003, https://geology.utah.gov/map-pub/survey-notes/geosights/spiral-jetty/

Board & Staff, Friends of the Great Salt Lake, https://www.fogsl.org/about/board-staff

Salt Lake Brine Shrimp, https://saltlakebrineshrimp.com/harvest/

March 27, 2023September 11, 2023

Sled Dogs-Sheer Joy

As the snow continued to pile up this winter, I started to ask around about sled dogs.

I soon bumped into a friend who had a friend in Preston who trained and occasionally raced his team of 14 Alaskan Huskies.

This musher graciously offered to give me a ride on one of his training runs. I showed up all smiles as he was harnessing his team. The dogs were excited to go and actually howling with happiness. The musher asked if I wanted to get in – or ride up the trail a bit on a snowmobile with his teenage son to a more level spot. In a rare moment of sanity, I opted for the snowmobile.

The machine had just pulled out of the yard when I heard his son say, “Oh, No!”

I looked back in time to see the sled tip over, sending the musher sliding across the driveway and under my car parked at the end of it. I jumped off the snowmobile as the dogs shot past us with the empty sled. The dogs were gaining on a truck up ahead, then shot past it with the snowmobile in hot pursuit.

I was left standing in a snowbank wondering if I’d wandered into a James Bond movie.

My first encounter with sled dogs had gone a lot smoother. I was visiting Denali National Park in Alaska and the rangers were introducing us to one of the dog teams that they still use to patrol the park.

But the most famous sled dogs are the freight teams that carried anti-toxin from Anchorage to Nome during an outbreak of Diphtheria in 1925. The dog teams ran a thousand miles and are credited with saving hundreds of lives.

For the last 50 years, modern mushers have retraced this journey in the ultimate sled dog race, the Ididarod. The best account I’ve read about the world of training sled dogs and running the Ididarod is Gary Paulsen’s book Winterdance. Just before going on a training ride, he discovered, “the gangline was trembling, quivering like a string on a guitar. It fairly hummed and I felt there was great power there. The trees in the yard went by in a mad blur and we left the yard at warp speed.”

Paulsen also lets us in on the deep relationship mushers form with their dogs: “As they understand you will give them meat when they run, and love when they run, and your soul when they run – as they learn to feel that, understand that, know that – they are no longer sled dogs – they become distance dogs, dogs that cannot, will not be stopped.” Paulson ran the Iditarod in 1983. It was a wild ride that took 17 days. But he finished.

Meanwhile, back in Preston, our teenage hero had caught up with the runaway team, made a flying leap from the snowmobile onto the empty sled, and somehow managed to stop the team. Pretty soon the musher and I caught up.

“Do you still want to get in?” he asked.

“Sure,” I said.

And we were off. The dogs settled into a steady trot. From then on it was all Sun and Snow and the sheer Joy of sliding quietly through the magnificent winter scenery.

This is Mary Heers and I’m Wild About Utah

Credits:
Photos: Courtesy & Copyright Mary Heers, Photographer
Featured Audio: Courtesy & Copyright Mary Heers
Text: Mary Heers, https://cca.usu.edu/files/awards/art-and-mary-heers-citation.pdf
Additional Reading: Lyle Bingham, https://bridgerlandaudubon.org/

Additional Reading

Wild About Utah, Mary Heers’ Postings

Paulsen, Gary, Winterdance: The Fine Madness of Running the Iditarod, Harvest Books, HarperCollins February 17, 1995, https://www.amazon.com/Winterdance-Fine-Madness-Running-Iditarod/dp/0156001454/

Idaho Sled Dog Challenge, https://idahosleddogchallenge.com/

March 13, 2023March 4, 2026

The Bees and the Birds

March is a thrilling month to be in an elementary school. Besides fifth grade maturation sessions, shamrocks pop up and many spotlight the impact of Dr. Seuss. Besides green eggs and ham eaten by children wearing tall red and white hats, we read and re-read books filled with fanciful characters and rhymes that roll off the tongue. I learned this year along with my students that Dr. Seuss’s father was the superintendent of parks in Springfield, Massachusetts, so naturally young Theodor took his sketchpad and pencil to observe and record whenever he could. When an animal lost an antler at the zoo, he would use it to craft a sculpture just as whimsical as the imaginative ones in his books. He called them pieces of The Seuss System of Unorthodox Taxidermy and placed them early in his career as promotional advertisements in bookshops. Kangaroo Bird with its teal stripes and pouch-perched hatchling and the Andulovian Grackler’s fur tufts and orange bill intrigue me. He also painted the stunning “The Birds and the Trees” featuring a white flock flying between red and pink palm trees that inspired the Dadake Day in “Oh the Thinks You Can Think.” As we studied Dr. Seuss’s “Did I Ever Tell You How Lucky You Are?” released 50 years ago this year, students noted how many birds appeared in the pages, leading us to do a Seuss bird scavenger hunt, our version of the birding counts chronicled in Mark Obmascik’s “The Big Year: A Tale of Man, Nature, and Fowl Obsession” (that’s f-o-w-l).

I do know I was lucky to teach once on a fifth grade team with a man students called Mr. J. Among many other things, he taught them how to recognize and identify birds. He preserved a time each day to review birds they had learned and add facts about a new species, how it looks, how it sounds, and how it behaves. He could display photographs and even silhouettes; students knew the shapes enough to identify them. He could play short audio clips, and students shouted out the corresponding birds too. I’ve discovered since The Bird Song Hero app that provides a spectrogram showing pitches visually that allow people like me another way to memorize those various bird songs. I remember I popped in the day they were discussing how our loggerhead shrike impales insects, rodents, snakes, and lizards on fences and really anything sharp and off the ground. When we took them on the bus through the Bear River Migratory Bird Refuge, I couldn’t believe my ears as kids with binoculars and without them were confidently shouting, “I see…” and tallying on their clipboards. For weeks that spring I would find students at recess peering up in the sky above the schoolyard doing the same thing. When I marveled at this phenomenon, Mr. J. smiled. “You know, Shannon, it isn’t about the birds. It’s about being aware.”

So often his “It’s about being aware” mantra pops in my head, like it did this week when my students huddled around our class pet cage housing a bee that emerged early from my Crown Bee tube “free-bee” from a recent science-teaching conference. Just like Dr. Seuss’s Bee-Watcher-Watchers, these six- and seven-year-olds eagerly missed romping in the fresh powder playground to watch a bee perched on a strawberry. I’ve done the same thing, standing mesmerized, lost in thought, watching a bee on a western coneflower, repeating the Seuss rhyme “Just tell yourself, Duckie, you’re really quite lucky.”

For Wild About Utah, I’m Shannon Rhodes.

Credits:

Images: Courtesy & Copyright Shannon Rhodes, Photographer
Audio: Courtesy & © Friend Weller, https://upr.org/
Text: Shannon Rhodes, Edith Bowen Laboratory School, Utah State University https://edithbowen.usu.edu/
Additional Reading Links: Shannon Rhodes

Additional Reading:

Wild About Utah Pieces by Shannon Rhodes, https://wildaboututah.org/author/shannon-rhodes/

The Art of Dr. Seuss Collection. The Birds and the Trees. https://www.drseussart.com/the-birds-and-the-trees

The Art of Dr. Seuss Collection. The Bee-Watcher. https://www.drseussart.com/illustration-art/the-bee-watcher

The Art of Dr. Seuss Collection. The Seuss Collection of Unorthodox Taxidermy. https://www.drseussart.com/taxidermy

Bird Song Hero. https://academy.allaboutbirds.org/features/bird-song-hero/bird-song-hero-tutorial

Cane, Jim. The Native Bees of Utah. July 7, 2011. Wild About Utah. https://wildaboututah.org/the-native-bees-of-utah/

Kervin, Linda. Shrikes. October 31, 2013. Wild About Utah. https://wildaboututah.org/shrikes/#:~:text=Utah%20has%202%20species%20of,with%20their%20thick%20hooked%20bill .

Newberry, Todd & Holtan, G. (2005). The Ardent Birder: On the Craft of Birdwatching. Random House LLC. https://www.amazon.com/Ardent-Birder-Birdwatching-Newberry-2005-10-01/dp/B01FGJKGUS?asin=1580087159&revisionId=&format=4&depth=1

Obmascik, Mark. The Big Year. https://www.markobmascik.com/books/ and https://www.audubon.org/content/mark-obmascik

Seuss, Dr. Did I Ever Tell You How Lucky You Are? (1973). New York: Random House.https://www.penguinrandomhouse.com/books/42980/did-i-ever-tell-you-how-lucky-you-are-by-dr-seuss/

Seuss, Dr. Oh the Thinks You Can Think. (1975). New York: Random House.https://www.penguinrandomhouse.com/books/43101/oh-the-thinks-you-can-think-by-dr-seuss/