Phenology Archives - Wild About Utah

March 2, 2025March 3, 2025

Sound Can Brighten the Dingy Days

Red-winged Blackbird Male
Courtesy Pixabay, Nichole Linzmeier, Contributor

For many of us who love the outdoors, the first half of March is a least favorite time of year. It’s a drizzly season. In northern Utah’s urban valleys, the lingering patches of snow are tinged with dirty gray that mirrors the dingy sky. Winter has lost its cleansing power, yet the budburst and first blooms of springtime are still weeks away. But if we close our eyes and listen, nature still can brighten the dingy days. A week or so ago, my wife and I stopped by a wetland we like near the Great Salt Lake. It had snowed the day before, and the marsh was half frozen. The remaining open water was packed with wintering waterfowl – pintails and coots and gadwalls and geese. We rolled down the car window to listen, and were greeted by the glorious cacophony of red-winged blackbirds.

That’s the bright side of early March. It’s a time when the early songbirds start to exercise their vocal chords. You might hear the complex warbling of a house finch, or the sweet piping “hee-did-it” of the black-capped chickadee. But to me, nothing says springtime like a blackbird’s song in an awakening marsh. It’s not a pretty sound, but it’s boisterous and exuberant. It embodies the joy of springtime.

But why now? Why not wait till things warm up a bit? And how do they know, when the nights can still be frigid and the days can still be dreary, that it’s time to gear up for spring?

The answer has nothing to do with temperature or precipitation. It’s a trick of the light. Or more specifically, the length of the day. For birds, that’s the most reliable calendar. When the time between sunrise and sunset reaches a certain number of minutes, photo-receptors in the avian brain trigger the production of hormones. That stimulates their sexual organs, telling the male blackbirds it’s time to get feisty. They begin to stake out nesting territories, singing their superiority to brothers and cousins. By the time the females arrive a few weeks later, they’ve sorted things out and are ready to mate and raise babies.

Unfortunately, not everything in nature uses daylength as an alarm clock. Plants and insects respond better to temperature. As the world’s climate changes, tree leaves emerge earlier, and so do the creatures that love to eat those tender spring shoots. The downside of change is exemplified by the plight of the European pied flycatcher. These birds spend the winter in Africa, flying north when daylength triggers the urge to migrate. For centuries they’d arrive just as caterpillars were emerging to feed on new foliage – a perfect source of protein to feed their hatchlings. But since daylength hasn’t changed while the climate has, now the flycatchers’ timing is off. Food is scarcer. Fewer nestlings survive.

Scientists have a name for this: phenological mismatch. We’re seeing more and more examples in nature where the timing of life events is off. It’s likely that a few species will adapt. Birds that get antsy early – jumping the gun on migration – will be favored by natural selection. But evolution takes time, and many species will suffer. In the meantime, we can take heart in knowing we can still count on songbirds to brighten this dreariest of seasons.

I’m Mark Brunson, and I’m wild about the sounds of Utah nature.

Credits:

Images Courtesy Pixabay, Nichole Linzmeier (Linzmeier1), Contributor https://pixabay.com/photos/bird-red-winged-black-bird-red-5276962/
Featured Audio: Courtesy & © Kevin Colver, https://wildstore.wildsanctuary.com/collections/special-collections and J. Chase and K.W. Baldwin. https://upr.org/
Text: Mark Brunson, https://www.usu.edu/experts/profile/mark-brunson/
Additional Reading: Lyle Bingham, https://bridgerlandaudubon.org/

Additional Reading

Faherty, Mark, Never mind the temperature, increasing photoperiod means birds are singing louder and longer, CapeandIslands.org owned and operated by the WGBH Educational Foundation (“WGBH”), February 21, 2018, https://www.capeandislands.org/in-this-place/2019-02-20/never-mind-the-temperature-increasing-photoperiod-means-birds-are-singing-louder-and-longer

Larese-Casanova, Mark, Blackbirds in our wetlands, Wild About Utah, May 26, 2011, https://wildaboututah.org/blackbirds-in-our-wetlands/

Birds on the wing, Living on Earth®, World Media Foundation, March 19, 2010, https://www.loe.org/shows/segments.html?programID=10-P13-00012&segmentID=6

Early spring is causing a mismatch of food, News, Cardiff University, April 30, 2018 https://www.cardiff.ac.uk/news/view/1168289-early-spring-is-causing-a-mismatch-of-food

Red-winged Blackbird, Agelaius phoeniceus, Profiles, UtahBirds.org, http://utahbirds.org/birdsofutah/ProfilesL-R/RedWingedBlackbird.htm
Photo Gallery: http://utahbirds.org/birdsofutah/BirdsL-R/RedWingBlackbird.htm
ID & Song: https://www.allaboutbirds.org/guide/Red-winged_Blackbird/id

Red-winged Blackbird – Agelaius phoeniceus, Fieldguide, Utah Division of Wildlife Resources, Utah Department of Natural Resources, https://fieldguide.wildlife.utah.gov/?species=agelaius%20phoeniceus

June 8, 2020January 5, 2024

Finding the Black Rosy-Finch

Black Rosy-Finch Courtesy & © Janice Gardner, Photographer — Black Rosy-Finch (cropped)
Courtesy & © Janice Gardner, Photographer

Newly Banded Adult Male
Black Rosy-Finch
Courtesy & © Kim Savides

Rosy-Finch Study, Wild Utah Project

Newly Banded Adult Male Black Rosy-Finch Courtesy & © Kim Savides — Black Rosy-Finch (cropped)
Courtesy & © Janice Gardner, Photographer

Newly Banded Adult Male
Black Rosy-Finch
Courtesy & © Kim Savides

Rosy-Finch Study, Wild Utah Project

High in the snow-covered mountains of Northern Utah, Kim Savides, a graduate student in the Department of Wildland Resources at Utah State University waits for the daily avalanche report during winter months. If favorable, she ventures out to remote bird feeders in hopes of finding black rosy-finches.

The finches thrive in bad weather. When it’s a clear, sunny day Savides knows her likelihood of seeing a finch is slim. But on nasty, snowy, windy days she can count on seeing hundreds of the finches around the feeders.

Most of the bird feeders are on Utah’s beautiful ski resorts such as Alta and Powder Mountain. On blizzard-like days when skiers are choosing to staying home, Savides is heading up the slopes.

Clark Rushing, assistant professor in Department of Wildland Resources in the Quinney College of Natural Resources and principal investigator on the project explains, “To catch these black rosy-finches, we’re travelling to locations when the weather is at its worst. They are extremely hardy birds, how they survive in those conditions is pretty astounding. They are small birds weighing only a few ounces.”

Due to the warming temperatures, the black rosy-finch populations may be at risk.

Scientists fear the finch numbers may be decreasing, based on the reports from bird watchers who say they are seeing much less of the attractive bird. Researchers are concerned it may be a result of climate change.

Rushing explains, “The black rosy-finch has a small breeding distribution confined to very high elevation sites. Climate change may drive this species to smaller and smaller population sizes and possible extinction because as climate warms these sites, where the finches can breed, they will get smaller and smaller. The birds could eventually get pushed off the tops of the mountains with nowhere to go.”

According to the Wild Utah Project, “The black rosy-finch is one of the least-understood birds in North America. We understand little about its reproduction, population status, survival rates, or migratory tendencies.” Without this information wildlife managers can do little to help conserve its population.

Savides’ goal is to assist in gathering enough data so wildlife managers may begin to understand the life cycle of the finch and plan for conservation efforts.

Her project began by setting up mist nets around the feeders to catch the birds. Once caught, the finches were gently held while a micro-chip bracelet was attached to their legs.

Each time one of the tagged finches approaches a feeder, equipped with a radio frequency reader, the bird’s visit is logged.

The finches tagged last year are now returning. The data is beginning to be gathered.

Recognizing the amount of data needed, researchers have expanded the data gathering to include citizen scientists. These are residents of Utah who volunteer to be trained to identify the black rosy-finches. In the winter when the birds come down to lower elevations, in certain parts of the state, residents can report when they see the finches.

Any resident interested in becoming a citizen scientist can go to the Wild Utah Project website and receive more information.

As more and more data are gathered, researchers and wildlife managers can begin understanding the phenology of when the finches come down to lower elevations, when they return to higher elevations to breed, and how likely they are to survive from one year to the next. This knowledge could help with conservation efforts.

This is Shauna Leavitt and I’m Wild About Utah.

Credits:
Photos: Courtesy & © Janice Gardner
Courtesy & Copyright © Kim Savides,
Courtesy & Copyright © Wild Utah Project
Lead Audio: Courtesy and © Kevin Colver
Text: Shauna Leavitt, Utah Cooperative Fish and Wildlife Research Unit, Quinney College of Natural Resources, Utah State University

Sources & Additional Reading

Greene, Jack, Rosy Finches, Wild About Utah, March 11, 2019, https://wildaboututah.org/rosy-finches/

Gardner, Janice, Rosy Finch Study, Wild Utah Project, Fall/Winter 2019/2020, https://sagelandcollaborative.org/rosy-finch/ [link updated January 2024 – note WildUtahProject.org transformed to SagelandCollaborative.org]

Strand, Holly, A Big Year in Utah, Wild About Utah, October 27, 2011, https://wildaboututah.org/a-big-year-in-utah/

Black Rosy-Finch Identification, All About Birds, Cornell Lab of Ornithology, Cornell University, https://www.allaboutbirds.org/guide/Black_Rosy-Finch/id

Gray-Crowned Rosy-Finch Identification, All About Birds, Cornell Lab of Ornithology, Cornell University, https://www.allaboutbirds.org/guide/Gray-crowned_Rosy-Finch/id

Black Rosy Finches, Utah Division of Wildlife Resources, Utah Department of Natural Resources, https://fieldguide.wildlife.utah.gov/?species=leucosticte%20atrata

Gray-crowned Rosy Finches, Utah Division of Wildlife Resources, Utah Department of Natural Resources, https://fieldguide.wildlife.utah.gov/?Species=Leucosticte%20tephrocotis

Black Rosy Finches, UtahBirds.org, https://www.utahbirds.org/birdsofutah/Profiles/BlackRosyFinch.htm

Gray-crowned Rosy Finches, UtahBirds.org, https://www.utahbirds.org/birdsofutah/ProfilesD-K/GrayCrownedRosyFinch.htm

Black & Gray Rosy Finches, Tim Avery Birding, http://www.timaverybirding.com/photos/thumbnails.php?search=black+Rosy-Finches&album=search&title=on [Link updated January 2024]

Phenology Tools for Community Science
USA National Phenology Network, https://www.usanpn.org/
Nature’s Notebook Education Program, US National Phenology Network, https://www.usanpn.org/nn/education

North American Bird Phenology Program, USGS Patuxent Wildlife Research Center, https://www.pwrc.usgs.gov/bpp/BecomeAParticipant.cfm

eBird, https://www.ebird.org/

iNaturalist, https://www.inaturalist.org/

March 19, 2018December 3, 2023

Journey North

To those who take personal pride in their yard, park, field, or community you could become part of an amazing network called Journey North. This is a free, extremely easy Citizen-Science online activity that people can simply enjoy, or enter data about their own backyard and join over 80,000 other people and schools that participate regularly.

Journey North began in 1994 as a way for people to contribute to the study of Phenology (which is the observation of seasonal changes in living things). Of course these changes take place based upon latitude, altitude, soil types, and proximity to water.

Basically, people observe what is happening in their own yard on any particular day, then they go to www.learner.org/jnorth/ where they can register their location and record their observations of certain birds migrating back north, or the budding and flowering of plants as the temperatures warm in the Spring. It’s interesting to compare the differences between Southern sites like Moab and Saint George to the Northern cities like Logan.

Nobody ever inspects your property, and the data is kept confidential on the Journey North site. There are no ads or phone calls to try to sell anything. This is strictly to collect science data. There ARE options to email other observers around the world, but nobody is required to respond.

Once you enter data, a dot will appear on the world map showing your general location. The dots are colored, based on the date of the entry so everyone can witness seasonal changes sweeping northward in full color.

What kinds of data does Journey North record? They’ve prepared a general list realizing that not all these species will be seen by everyone. A sample of birds includes: Hummingbirds, Bald Eagles, Whooping Cranes, Common Loons, Orioles, Red-Winged Blackbirds, Robins, and Barn Swallows.

Other sightings include the first day you observed: Milkweed growing, Monarch Butterflies, Earthworms surfacing, Frogs singing, the emerging and flowering of Tulips, the flowing of Maple sap, the date when tree buds opened into leaves, when ice melted off of nearby lakes, and when you first saw bats chasing insects around city lights.

Some reports come from around the world including South America, Eurasia, Africa, Asia, Australia and all of North America so don’t be surprised to see data about Gray Whales and Manatees. There’s even “Mystery Class” contests where people can try to guess the location of a school based upon their observation entries and the length of daylight they have reported during the season.

Journey North provides an opportunity for everyone to become a Citizen Scientist.

This is Ron Hellstern, and I am Wild About Utah.

Credits:

Images: Courtesy Journey North, jnorth.org, Map images used by permission, Elizabeth Howard, Director
Text: Ron Hellstern, Cache Valley Wildlife Association

Additional Reading
https://journeynorth.org/ has moved to:
https://www.learner.org/jnorth/

Journey North’s Spring Monarch Migration Monitoring, Cornell Lab of Ornithology, Citizen Science Central, https://www.birds.cornell.edu/citscitoolkit/projects/journeynorth/monarchs/

Our .state butterfly, the monarch, is at risk, Make Way for Monarchs, a Milkweed-Butterfly Recovery Alliance, July 29, 2014, https://makewayformonarchs.org/i/archives/1455/

NRCS Working Lands for Monarch Butterflies, https://arcg.is/0TjueO

North American Bird Phenology Program, USGS Patuxent Wildlife Research Center, https://www.pwrc.usgs.gov/bpp/BecomeAParticipant.cfm

eBird, https://www.ebird.org/

iNaturalist, https://www.inaturalist.org/

May 3, 2015December 3, 2023

I Love the Four Seasons

Red Admiral Butterfly, Thomas G. Barnes, US FWS Digital Library — Red Admiral Butterfly
Thomas G. Barnes
US FWS Digital Library

Glacier Lilies
*Erythronium grandiflorum*
Copyright © 2010 Andrea Liberatore

Click to view a larger image of a Glacier Lily. Courtesy and Copyright (c) 2010 Andrea Liberatore — Red Admiral Butterfly
Thomas G. Barnes
US FWS Digital Library

Glacier Lilies
*Erythronium grandiflorum*
Copyright © 2010 Andrea Liberatore

I love the four seasons. Having spent my 72 years residing in the mid latitudes, I’ve learned to celebrate each of our seasons, but especially spring!

This is the rebirth flush with abundant water, new greenery, and air filled with bird song and sweet aromas as new flowers perfume the air hoping to lure in a pollinator.

With mid-April upon us and our 42 degree latitude, spring is in full swing here in northern Utah! Winter departs grudgingly slapping us with snow squalls intermingled with glorious, early summer days, a wild roller coaster ride which I truly enjoy!
I’m an avid phenology follower. Phenology is the study of how life adapts to seasonal changes. I revel in the first floral bloom, the first neotropical birds returning from Latin America with a heart full of song, and newly emerged, gaudy butterflies.

With a relatively stable climate, until recently, the timing of these events has evolved to near perfection
Let’s take a closer look at some of these phenomena. I’ll begin with our neotropical birds such as lazuli buntings, yellow warblers, and Western tanagers to mention a few. These species spend over half of their year in Mexico, Central and South America flying thousands of miles to for the breeding and nesting season in the Intermountain West. This may seem a bit extreme for these tiny flurries of life.

On closer inspection, you will find they have good reason for this daunting and dangerous task. The tropics have a relatively stable climate without the dramatic seasonal change that we experience. This results in relatively stable populations of flowers and insects, the primary food sources for most species. Further, the ratio of daylight to darkness is nearly constant with 12 hours of each. Our days lengthen as we journey toward summer solstice with nearly 16 hours of daylight! This allows a burst of energy to flow through ecosystems resulting in eruptive populations of insects and floral bloom. It also offers long hours of daylight for parents to gather food for their young which grow rapidly toward fledglings, thus reducing the possibility of predation and also preparing them for the arduous flight south as fall approaches.

Let’s examine flowers and insects. With our very warm winter and spring, I was expecting a much earlier arrival of both and was not disappointed. I counted 17 species of flowers by the second week of April! And butterflies were on a similar schedule with 9 different species during the last week of March- remarkably early! Although delighted, it occurred to me that returning birds may not be so pleased. If the flowers begin to fade, and insects begin their downward slide at the peak of birds rearing their young, trouble is afoot! A five year Audubon study revealed that 1/3 of our birds are predicted to be severely impacted by these rapid climate shifts.

On a more positive note, spring will continue as will bird song, vernal waterfalls, eruptions of wildflowers and butterflies. And spring repeats itself as we move to higher elevations. As cornices on our mountain ridges recede, up pops flowers for yet another spring bloom, and with them butterflies, bees, and birds!

Credits:

Additional Reading:

Kervin, Linda, USA National Phenology Network, Wild About Utah, July 2, 2009, https://wildaboututah.org/usa-national-phenology-network/

North American Bird Phenology Program, USGS Patuxent Wildlife Research Center, https://www.pwrc.usgs.gov/bpp/BecomeAParticipant.cfm

eBird, https://www.ebird.org/

iNaturalist, https://www.inaturalist.org/