Category: Vertebrates

The stunningly beautiful evening grosbeaks are mystery birds that come pouring from the canyons to invade our urban areas on a daily cycle- an eruptive population here in Cache Valley. I always hear their loud chirp notes high above, often beyond sight. They alight in towering trees where they feed and converse with chirps and trills all the while. Highly social, evening grosbeaks are unlike their four solitary grosbeak cousins.

Their behaviors leave me puzzled. – Why this daily ritual of flying back and forth from rural to urban? Where and when do they nest? Do they nest close together given their flock behavior? Are they urban or rural nesters? I was able to find some answers, but there are yet many gaps in on their behaviors and highly variable populations.

The Evening Grosbeaks were of much interest from the late 1800s to the mid-1900s, resulting from its eastward range expansion. Comparatively few recent studies have been conducted other than breeding ecology and behavior in Colorado during the 90’s. They were formerly restricted to the western United States but have expanded their range eastward across the country, perhaps a result of the establishment of box elder trees in eastern cities with abundant seeds that persist through the winter, and outbreaks of eastern forest insects which they feast on.

As is the case with many irruptive, nomadic species, it is difficult to determine their true population. Unfortunately, this bird has almost disappeared from the east once again, and has all but disappeared in the Appalachian Mountains and has suffered heavy declines elsewhere. A focus on understanding what is driving population trends is needed for developing conservation strategies to help it recover.

Potential causes of the Evening Grosbeak’s decline are tar sands mining, which has destroyed large swaths of its Canadian boreal forest breeding habitat. Pesticides used to control spruce budworm, an important food for Evening Grosbeak, may also be a factor. Large numbers are killed by window collisions, and cars during winter, when they gather on roadsides to pick up road salt and grit.

During the breeding season, their behavior is quite secretive, and courtship occurs without elaborate song or display. This secretiveness makes it difficult to study this species’ life history. They breed in high altitude and high latitude various forest types throughout North America. Nests are typically located high up in trees, on horizontal branches well out from the trunk. The female builds the nest, which is a loose saucer of roots and twigs lined with fine grass, moss, rootlets, needles, and lichen. Both parents, generally monogamous, help feed the young. They forage in treetops for insect larvae during the summer, buds in spring, and seeds, berries, and small fruits in winter. They sport heavy, strong beaks which can crack open the toughest shells, including cherry pits- a favorite. Evening Grosbeaks are known to snip off the twigs of Sugar Maple trees and sipping the sweet sap- yum!

As birders and citizen scientists, we must document all we can to supply the much needed dearth of data on this marvelous bird, and report it to www.ebird.org

This is Jack Greene for Bridgerland Audubon- and I’m wild about Utah and its evening grosbeaks!

Credits:

Pictures: Courtesy Pixabay, Alain
Courtesy US FWS,
Text: Jack Greene, Bridgerland Audubon Society

Additional Reading:

Evening Grosbeak, All About Birds, Cornell Lab of Ornithology, Cornell University, https://www.allaboutbirds.org/guide/Evening_Grosbeak

Evening Grosbeak, Coccothraustes vespertinus, Birdweb.com, Seattle Audubon Society, https://www.birdweb.org/birdweb/bird/evening_grosbeak

Evening Grosbeak, Coccothraustes vespertinus, eBird.org, https://ebird.org/species/evegro

Springtime in Cache Valley is marked by many events. It is a seasonal turn full of unrelenting life. The signs and the emotions they revive are marked by the beauty found in every hour of the day: from the day’s first bird songs, reviving the world from slumber, to their last evening’s lullaby.

Spring is also the time when warmth returns to the sunlight. After winter, I’ll often need to sit in the celestial rays to warm my bones, always hesitant lest snows reappear in May and I get soft. When I allow myself finally to ceade, the feeling of sun on my bare face in spring can only be described though as relief.

In the sun, too, one can’t help but breathe the smell of thaw, green buds, and warming winds. The many scents of earth remind me of its very mineral diversity, often thought of as monolithic, but truly clay, limestone, sand, gravel, and granite each fill the air’s bouquet differently in the wet and dry. These and other reminders which revise winter’s nostalgic fog breathe fresh life with even more vivacity.

Spring also brings with it labor, for who can truly say to love than those who enjoy its work? For me, I do love chores, especially in spring. I enjoy mowing the lawn, pruning trees, tilling the soil, and starting crops just as the Swede enjoys stacking split wood. It is a natural work to us both, a good work, and a labor of provision.

Additionally, these simple actions signify belonging to something larger than myself. It is how I honor the world around me: by acting in accordance to an older, more widely-shared order. I act as spring dictates, and thus am realized as its agent. Tis good to be an agent of such.

It also feels good to allow myself to slip into this annual cycle with such depth. I work on this, for no worthy cause is without struggle. I engage myself to grow the better in me as I make the choices of participation with the goal that one day it shall be habit. I leave the windows ajar to hear the birds and let their sage songs smudge my home. I walk often and stop to feel the catkin buds, listen to the absence of traffic, and smell big firs. I tend to wildflowers with my attention, nurturing tomorrow’s colors, medicines, and gifts.

So this spring, I invite you to try it on: being an agent of the season. Even if you do not garden, begin by experiencing what a new-born leaf feels like. Even if you do not mow, grab a blade, breathe it in, and harvest into your mind the scent. Even if you cannot understand them, open the windows and let the birds morning revelry and lullabies bookend your days. In these ways, we can all do good and live still by spring’s way.

I’m Patrick Kelly, and I’m Wild About Utah.
 
Spring’s Way-Credits:

Images: Image Courtesy & Copyright Patrick Kelly, Photographer, all rights reserved
Audio: Contains audio Courtesy & Copyright Kevin Colver
Text:    Patrick Kelly, Director of Education, Stokes Nature Center, https://logannature.org
Included Links: Lyle Bingham, Webmaster, WildAboutUtah.org

Spring’s Way-Additional Reading

Parkhurst, Emma, MS, CHES, Eight Stress-relieving Activites to Give You a Break from the Coronavirus, USU Extension | Davis County, https://extension.usu.edu/covid-19/mental-and-emotional-well-being

Brower, Naomi, Four Tips for Cultivating an Attitude of Gratitude, Utah State University Extension, https://extension.usu.edu/covid-19/mental-and-emotional-well-being

Brower, Naomi, Finding a Cure for the Sheltering-in-Place Blues, Utah State University Extension, https://extension.usu.edu/covid-19/mental-and-emotional-well-being

Swinton, Jonathon, Remaining Coronavirus Calm, Utah State University Extension, https://extension.usu.edu/covid-19/mental-and-emotional-well-being

Spring’s Way