A Utah Public Radio production featuring contributors who share a love of nature, preservation and education
Author: Andrew Durso
Andrew Durso is a PhD student at Utah State University, where he studies the behavior, physiology, and ecology of lizards and snakes. He grew up catching snakes in North Carolina before earning his Bachelor's Degree in Ecology at the University of Georgia and his Master's Degree in Biology at Eastern Illinois University. He writes a blog, Life is Short but Snakes are Long.
Cedar Waxwing US FWS FWS Digital Library, David Menke, PhotographerEvery winter, many of Utah’s breeding birds migrate south to avoid the cold. After the warblers, tanagers, and orioles leave each fall, we share the snowy winter with hardier residents, such as chickadees, nuthatches, and juncos. But even hardier birds breed in the far north and venture south to Utah only during the most severe winters.
…Cedar Waxwing (CEDW) call, Western Soundscape Archive; University of Utah, Audio file copyright 2007, Kevin Colver. All rights reserved…
Many people are familiar with the high, thin calls of Cedar Waxwings. Less frequently heard in Utah are the slightly lower calls of their close cousins, Bohemian Waxwings.
…Bohemian Waxwings(BOWA) call, Western Soundscape Archive; University of Utah, Audio file copyright 2007, Kevin Colver. All rights reserved…
Bohemian Waxwing, licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license. Source Wikimedia.org, Randen Pederson, Photographer.Bohemian Waxwings are slightly larger than Cedar Waxwings, and a little fancier—their wing feathers include red, yellow, black, and white, and the underside of their tails is a rich cinnamon. Both species gather by the hundreds to eat berries, so you won’t miss a flock if there’s one nearby. Although waxwings are songbirds, the calls you hear don’t serve the same functions as true songs, advertising mate quality and defending territories. Instead, waxwings cooperate to find and feed on scattered fruit, their main winter diet. Unlike most birds, waxwings are able to smell, which may help them find their food. If waxwings eat berries that have begun to ferment over the winter months, they may become intoxicated even though their ability to metabolize ethanol is very high. The last time Bohemian Waxwings were abundant in Utah was during the winter of 2012-2013.
Cedar Waxwing US FWS FWS Digital Library, David Menke, PhotographerEvery winter, many of Utah’s breeding birds migrate south to avoid the cold. After the warblers, tanagers, and orioles leave each fall, we share the snowy winter with hardier residents, such as chickadees, nuthatches, and juncos. But even hardier birds breed in the far north and venture south to Utah only during the most severe winters.
Many people are familiar with the high, thin calls of Cedar Wawings. Less frequently heard in Utah are the slightly lower calls of their close cousins, Bohemian Waxwings.
Bohemian Waxwing, licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license. Source Wikimedia.org, Randen Pederson, Photographer.Bohemian Waxwings are slightly larger than Cedar Waxwings, and a little fancier—their wing feathers include red, yellow, black, and white, and the underside of their tails is a rich cinnamon. Both species gather by the hundreds to eat berries, so you won’t miss a flock if there’s one nearby. Although waxwings are songbirds, the calls you hear don’t serve the same functions as true songs, advertising mate quality and defending territories. Instead, waxwings cooperate to find and feed on scattered fruit, their main winter diet. Unlike most birds, waxwings are able to smell, which may help them find their food. If waxwings eat berries that have begun to ferment over the winter months, they may become intoxicated even though their ability to metabolize ethanol is very high. The last time Bohemian Waxwings were abundant in Utah was during the winter of 2012-2013.
Tiger Salamander Ambystoma tigrinum Courtesy Andrey Zharkikh, Photographer License: Creative Commons 2.0Tiger Salamanders, named for their bold black-and-orange stripes, are Utah’s only salamander. Secretive inhabitants of our forests, streams, and lakes, these amphibians are rarely seen. Tiger Salamanders spend most of their year underground, in moist burrows beneath logs and among tree roots. They come to the surface just once a year, emerging at night in the early spring to trek across the snow to newly-thawed wetlands.
Many people see Tiger Salamanders only when one accidentally falls into their window well. About 6 inches long, with a 6-inch tail, they are often mistaken for lizards even though they are more closely related to frogs. This is more obvious when you look at a salamander’s aquatic larvae, which hatch from tiny, shell-less eggs that resemble caviar. At first, they sport gills and have only tiny limbs. Usually, they metamorphose after about 2 ½ months, transforming into boldly-barred adults. Occasionally, if wetland conditions are safe, they can mature in their natal pond, becoming juvenile-like adults called paedomorphs, which can breed but resemble gigantic larvae.
Tiger Salamanders select very particular wetlands. They particularly look for bodies of water that don’t have any large, predatory fishes that would eat their eggs. Well-known examples of breeding sites in Utah include Lake Solitude in Big Cottonwood Canyon, Tony Grove Lake in Logan Canyon, and the aptly-named Salamander Lake in Stewart Canyon on the northeast slope of Mt. Timpanogos.
Amphibian Decline: Saving the Salamander, Karen Lips AAAS – The American Association for the Advancement of Science, Washington, DC 20005, http://youtu.be/mgVPh8PCCk4, (Accessed: Feb 15, 2016)
Save the salamanders, unsung heroes of the forest, Brian Resnick, Science Reporter Vox, Interviewing Matthew Grey, University of Tennessee Knoxville, https://www.youtube.com/watch?v=cnrSa18-onc, (Accessed: Feb 15, 2016)
AmphibiaWeb: Information on amphibian biology and conservation. Ambystoma tigrinum. 2016. Berkeley, California: AmphibiaWeb. Available: http://amphibiaweb.org/. (Accessed: Feb 15, 2016).
Cedar Waxwing US FWS FWS Digital Library, David Menke, PhotographerEvery winter, many of Utah’s breeding birds migrate south to avoid the cold. After the warblers, tanagers, and orioles leave each fall, we share the snowy winter with hardier residents, such as chickadees, nuthatches, and juncos. But even hardier birds breed in the far north and venture south to Utah only during the most severe winters.
Many people are familiar with the high, thin calls of Cedar Wawings. Less frequently heard in Utah are the slightly lower calls of their close cousins, Bohemian Waxwings.
Bohemian Waxwing, licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license. Source Wikimedia.org, Randen Pederson, Photographer.Bohemian Waxwings are slightly larger than Cedar Waxwings, and a little fancier—their wing feathers include red, yellow, black, and white, and the underside of their tails is a rich cinnamon. Both species gather by the hundreds to eat berries, so you won’t miss a flock if there’s one nearby. Although waxwings are songbirds, the calls you hear don’t serve the same functions as true songs, advertising mate quality and defending territories. Instead, waxwings cooperate to find and feed on scattered fruit, their main winter diet. Unlike most birds, waxwings are able to smell, which may help them find their food. If waxwings eat berries that have begun to ferment over the winter months, they may become intoxicated even though their ability to metabolize ethanol is very high. The last time Bohemian Waxwings were abundant in Utah was during the winter of 2012-2013.
