Vertebrates Archives - Page 119 of 122

October 28, 2008December 8, 2025

Pikas, Our First Haymakers

“Make hay while the sun shines” is a venerable bit of farm wisdom that encourages cutting and drying of hay during fair weather. One, two, possibly three cuttings of alfalfa hay have been baled and stacked this summer by Utah’s farmers to feed dairy cows and horses this winter. More traditionally, ranchers have cut meadow or marsh hay to be piled in the lofts of their barns.

Utah’s first haymakers were not ranchers at all, however. These earliest haymakers cut hay for their own consumption. To see and hear these daytime haymakers, you must travel high into our mountains, to 9,000 feet or higher. Look for a boulder strewn talus slope or rockslide. Listen for this call….. if you hear it, you have found the pika, our first haymaker. That call was either declaring the pika’s individual territory or an alarm announcing you. These rounded relatives of our rabbits resemble a tawny-coated chinchilla or a plush, plump guinea pig. They have nearly circular small ears and no apparent tail.

All day long during the alpine summer, pikas are busy cutting grasses, sedges and wildflowers from neighboring meadows. They haul this back by the mouthful to tuck in crevasses in their stony stronghold to dry. These stockpiles are their winter larder. You see, unlike their alpine kin, such as marmots, ground squirrels and chipmunks, our pikas don’t burrow and they don’t hibernate. Unlike the snowshoe hare, pikas don’t get out much either once the snow flies. Under the snow pack, they simply dine on hay.

Pikas are strange little lagomorphs (relatives of rabbits and hares), Photo © 2004-2008 Mark Chappell — Pikas are strange little lagomorphs
(relatives of rabbits and hares)
that live in rocky areas and talus slopes
in alpine habitats in much of the
mountainous western US and Canada.
Photo © 2004-2008 Mark Chappell

In Utah, poke around for pikas amid high peaks along the mountainous central spine of our state, from the Uintas south to Brian Head, wherever peaks reach toward tree line and you can find. There you may find pikas making hay or loafing atop prominent stones in their rock jumbles, or contributing to the territorial calls of their talus slope choir. Their intolerance of heat keeps them from spreading downslope. Like the moose, they are one of the animals that will fare poorly with significant climate warming. For now, though, you can continue to peek for picas amid Utah’s glorious alpine scenery.

Credits:

Photo: Images of the Natural World, Courtesy & Copyright 2004-2008 Mark Chappell https://faculty.ucr.edu/~chappell/INW/
American Pika Page: https://faculty.ucr.edu/~chappell/INW/mammals/pika.shtml
Audio: Trout and Berry Days by Leaping Lulu, https://wildaboututah.org/about-us/
Text: Jim Cane, Bridgerland Audubon Society
Voice: Richard (Dick) Hurren, Bridgerland Audubon Society

Additional Reading:

American Pika, Utah Division of Natural Resources, https://dwrcdc.nr.utah.gov/rsgis2/search/Display.asp?FlNm=ochoprin

Pikas in Utah, Video from Utah DWR, https://youtu.be/czMoUzBUkTE

“Damn Cute Pikas” Narrated by David Attenborough and posted by Paul Garita on YouTube: https://www.youtube.com/watch?v=QVJuRgil0wQ&NR=1
American Pika, Nature Works, New Hampshire Public Television, https://www.nhptv.org/NATUREWORKS/americanpika.htm

Pika, Utah DWR Instragram Account, https://www.instagram.com/p/r7_haQtoZC/?modal=true

Fluffy_Memory_6238, Show me your war cry (Pika alert), Animals Being Derps, Reddit.com, https://www.reddit.com/r/AnimalsBeingDerps/comments/ppcaaw/show_me_your_war_cry/

Utah Division of Wildlife Resources Sensitive Species biologist Kevin Labrum talks with Brett Prettyman from SL Tribune about Pikas in Utah

Booth, Michael, Chirp one out for the pika: Climate change is destabilizing previously perfect Rocky Mountain habitat, December 4, 2025, https://coloradosun.com/2025/12/04/colorado-pika-population-global-warming/

October 21, 2008February 11, 2026

Important Bird Areas

Not all places on earth were created equal. Some places attract lots of birds, and some don’t. And some places support birds that are at more at risk of extinction than others. Those two simple statements are the basis of a worldwide effort to map Important Bird Areas or IBAs as they are called in the birding world. This effort has been led by Birdlife International which is a conglomerate of partnership organizations dedicated to the welfare of birds. To date, over 7500 IBA sites have been identified and described in over 170 countries.

In the United States, the partner for identifying IBAs is the National Audubon Society. Wayne Martinson and Keith Evans of the Wasatch Audubon Society have just completed a book about the IBAs in Utah called Utah’s featured birds and Viewing sites. Reading it, I learned that Utah has 21 different sites and more are under consideration. Many of Utah’s IBA’s are clustered around the Great Salt Lake . The largest ones in area are Gilbert Bay and the Deseret Land and Livestock Ranch.

Landowner permission is required for an area to be recognized in Utah. Furthermore, an IBA designation does not imply any oversight or management implications. It is merely a form of recognition of the unique nature of each site.

IBAs are designated to be of global, national or state significance. There are carefully-defined criteria for making the designation. To be considered globally significant, one of the following must be true for a given site:

It must regularly hold significant numbers of a globally threatened species or
It must regularly hold a significant population of narrow endemics or species with very limited distribution or
It must regularly support exceptionally large numbers of migrating or congregating species

Eight of Utah’s twenty-one IBA’s are considered of global significance. The globally significant sites include Gunnison Bay , Bear River Bay, Ogden Bay, Farmington Bay, Gilbert Bay of the Great Salt Lake, Deseret Land and Livestock Ranch, and the San Juan County/Gunnison Sage-Grouse IBA.

In the future, we’ll probably see more including Zion National Park based on the presence of Mexican Spotted Owl and California Condor, Parker Mountain based on Greater Sage Grouse , and Cutler Marsh-Amalga Barrens based on its large White-faced Ibis colony.

Each one of Utah’s important bird areas is an interesting subject in and of itself. You might just hear about a few of them in future episodes.

Credits:

Theme: Courtesy & Copyright Don Anderson as performed by Leaping Lulu
Photo: Courtesy Bridgerland Audubon Society
Text: Stokes Nature Center: Holly Strand

Sources & Additional Reading:

Cutler Marsh-Amalga Barrens IBA site description https://www.audubon.org/important-bird-areas/cutler-reservoir-and-marsh-ut08

Ryder, R. A. and D. E. Manry (2020). White-faced Ibis (Plegadis chihi), version 1.0. In Birds of the World (A. F. Poole and F. B. Gill, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.whfibi.01 or https://birdsoftheworld.org/bow/species/whfibi/cur/introduction [Updated February 11, 2026]

Important Bird Areas, Audubon Society, www.audubon.org/bird/IBA/ Note: Website changed to https://www.audubon.org/important-bird-areas
See also
https://www.audubon.org/important-bird-areas/state/utah
https://www.audubon.org/important-bird-areas/cutler-reservoir-and-marsh-ut08 [Accessed September 19, 2021]

Protecting the most important habitats for birds, BirdLife International, https://www.birdlife.org/projects/ibas-mapping-most-important-places/ [Updated February 11, 2026]

Important Bird Areas, Audubon Society, https://www.audubon.org/important-bird-areas

Important Bird Areas(IBAs), BirdLife International, https://www.birdlife.org/focus-areas/sites/

[Page updated February 11, 2026]

October 7, 2008November 1, 2024

Kokanee Salmon

A little over a week ago, I saw my first kokanee salmon run up Little Bear River just east of Porcupine Reservoir. This year, researchers counted over 10,000 fish within a mile of the reservoir. That’s a record number. My friends and I marveled at these wriggling flashes of color as they struggled upstream. It inspired me to spend the week reading about salmon. Here’s what I learned.

First of all it surprised me that salmon and trout are so close genetically. Along with whitefish and grayling, they form the family Salmonidae, but salmon and trout are the most similar. The main difference between them is that salmon generally migrate from their freshwater birthplace to the sea to get more and better food. And then they return to spawn in freshwater rivers and streams where there are fewer predators. And generally – although it’s not true for all – salmon spawn once and die while trout go through a number of spawning cycles.

The Pacific Sockeye salmon resembles a silvery rainbow trout during most of its life. But when it spawns, the male especially undergoes a miraculous transformation. His head turns green, his body turns a bright red, and his back grows a bump. And his jaw begins to hook until he’s got a pronounced overbite. There’s a lot of jostling over females during breeding, and the humpback and hooked jaw helps him intimidate other male fish so he can fertilize more female eggs. And the red color is considered highly attractive to the opposite sex.

White-tailed Kokanee Salmon, Courtesy & Copyright 2008 Mary-Ann Muffoletto — White-talied Kokanee Salmon
Copyright 2008 Mary-Ann Muffoletto

The kokanee is an evolutionary branch of the sockeye. Both of them spawn in freshwater nurseries and then move to a nursery lake to grow for awhile. Then the sockeye salmon migrates to the ocean while the kokanee remain in the lake. After a few years they both return to the freshwater streams to spawn and die. The funny thing is, that if you take a sockeye and keep him in a lake, he doesn’t turn red when it’s time to spawn. That’s because red color derives from carotenoid pigments in the salmon’s diet and these pigments are much more prevalent in ocean food. So why does the kokanee turn the same red as the sockeye? It’s because the sexual preference for red was so strong that the kokanee actually evolved the ability to process carotenoid pigments with 3 times the efficiency of sockeyes.

Kokanee above Pineview Reservoir, Courtesy & Copyright 2008 Mary-Ann Muffoletto — Kokanee above Pineview Reservoir
Courtesy & Copyright 2008 Mary-Ann Muffoletto

Because it flexibly defines a lake as its ocean, the kokanee has become a popular fish for reintroduction into western lakes and reservoirs. In 1922, the kokanee was first introduced for sport fishing into Utah’s Bear Lake. Nowadays you can see them spawn in the Little Bear River out of Porcupine Reservoir, Sheep Creek near Flaming Gorge Reservoir, and tributary streams of Strawberry Reservoir.

If you hurry, you can still catch the last of the spawning kokanees, their bright red bodies an aquatic response to the flaming Utah maple on the surrounding hillsides.

Special thanks to Charles Hawkins (Watershed Sciences, College of Natural Resources, Utah State University) , Phaedra Budy (Utah Cooperative Fish and Wildlife Research Unit, College of Natural Resources, Utah State University) and Bret Roper (US Forest Service, Fish & Aquatic Ecology Unit, Logan, UT) for their comments on this piece.

Credits:

Photo: Courtesy of and Copyright 2008 Mary-Ann Muffoletto
Text: Stokes Nature Center: Holly Strand

Sources & Additional Reading
Aggies Help State with Fall Salmon Count 2008. Utah State Today. Sept 25, 2008. https://www.usu.edu/today/story/aggies-help-state-with-fall-salmon-count [Updated October 31, 2024, formerly https://www.usu.edu/ust/index.cfm?article=30698]

Coates, P. 2006. Salmon. London: Reaktion Books https://reaktionbooks.co.uk/work/salmon-2

Craig, J.K., and Foote, C.J. 2001. Countergradient variation and secondary sexual color: phenotypic convergence promotes genetic divergence in carotenoid use between sympatric anadromous and nonanadromous morphs of sockeye salmon (Oncorhynchus nerka), Evolution 55(2), 2001, pp. 380-391. https://pubmed.ncbi.nlm.nih.gov/11308094/

Utah Division of Wildlife Resources. Kokanee (Oncorhynchus nerka). Wildlife notebook Series No. 10.https://redrockadventure.com/fishing/species/kokanee-dwr-booklet.pdf (accessed Oct 31, 2021)
formerly held at https://wildlife.utah.gov/publications/pdf/newkokan.pdf (accessed Oct 3, 2008)
See also:

Stewart, Ron, UDWR, Kokanee Salmon in Strawberry Reservoir https://www.redrockadventure.com/fishing/Strawberry/strawberry_kokanee.htm

Where you can see bright red kokanee salmon in Utah this fall, Utah Division of Wildlife Resources, August 31, 2023, https://wildlife.utah.gov/news/utah-wildlife-news/1746-where-to-see-bright-red-kokanee-salmon-this-fall.html [Updated November 1, 2024]

Isaacson, Samantha, Kokanee Salmon Run the River, The Utah Statesman(USU Student Newspaper), October 21, 2024 https://usustatesman.com/kokanee-salmon-run-the-river/ [Accessed October 31, 2024]

September 30, 2008December 10, 2017

Moose in Utah

Moose Courtesy and Copyright 2007 Jason Pietrzak, PTRZK.com — Moose
Courtesy and Copyright 2007 Jason Pietrzak, PTRZK.com

Hi, I’m Dick Hurren from Bridgerland Audubon Society.

If you’ve spent much time in the forests and wetlands of northern Utah, you may have been lucky enough to see one of North America’s most magnificent animals, the Moose.

The Moose is the largest member of the deer family, and one of the largest mammals to survive the last Ice Age. Utah’s subspecies of Moose is known as the Shiras,
or Wyoming Moose. Although the smallest subspecies of Moose in North America, it can grow to be nearly six feet tall and weigh as much as 1,000 pounds. Bull Moose
can grow a rack of antlers that reaches four feet across.

One might assume such an ancient and enormous animal has long existed in Utah, but in fact the Moose is one of Utah’s newer immigrants.
The first Moose in Utah were seen about 100 years ago, and the total population may have been less than 100 animals as late as the 1950s. Today, there are about 4,500
Moose throughout northern Utah. So how did the Moose become so plentiful in such a short time?

The Moose’s immigration to Utah looks like a case of perfect timing. Many of the Moose’s predators like Grizzly Bears, Wolves and Mountain Lions had been largely
exterminated. At the same time, logging was replacing mature forests with new meadows and scrub that Moose prefer. The combination of young growth and wetlands provided
the ideal habitat for Moose to thrive.

On top of these favorable conditions, human management has helped the Moose expand. Overwhelming demand for Moose hunting
has fostered strategies to encourage population growth.
More recently, there have been attempts to speed up the expansion of Moose by transplanting them to new mountain ranges.

Despite success in the last hundred years, Moose face many challenges in the next hundred. Maturing woodlands will be able to support fewer Moose.
Old predators are rebounding slightly and will take their toll. But the most difficult challenge the Moose may face is that of climate change.
The Moose evolved to survive in extreme cold climates. If temperatures continue to rise, the Moose will retreat
higher into the mountains and further north until one day this recent visitor returns to Wyoming or even further north.

The next time you visit the mountains, pay close attention to the streams and lakes particularly those surrounded by willows.
And you too may be lucky enough to see the moose.

For Wild About Utah I’m Dick Hurren.

Credits:

Photo: Courtesy and Copyright Jason Pietrzak www.ptrzk.com

Text: Bridgerland Audubon Society – Jason Pietrzak, Dick Hurren

For More Information:

Utah’s Unbelievable Ungulates, Nature’s Call, Fall 1997, Utah Project Wild, Utah Division of Natural Resources, https://wildlife.utah.gov/projectwild/newsletters/97fall-gw.pdf

Where Do They Go When It Snows?!, Nature’s Call, Winter 1993, Utah Project Wild, Utah Division of Natural Resources, https://wildlife.utah.gov/projectwild/newsletters/93winter-nc.pdf