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J. Willard Marriott Library, University of Utah, Salt Lake City, Utah 84112; Ecological and animal data provided by NatureServe. NatureServe Explorer: An online encyclopedia of life [web application]. NatureServe, Arlington, Virginia. Available http://www.natureserve.org/explorer.
Several examples of Sierra Nevada Yellow-legged Frog calls
As of the year 2008, this species is categorized as "Endangered" by the International Union for Conservation of Nature (IUCN); See: "http://www.natureserve.org/explorer/servlet/NatureServe?s=ELEMENT_GLOBAL.2.802511" for additional conservation data;
All calls were recorded between 12:30 and 1:30 PM at a small lake in Alpine County, California, elevation 8,800 feet;
Air temperature was approx. 65 degrees Fahrenheit, with sunny skies and very little snow left on the ground;
Recordings are of a male frog at the edge of a slow drainage into the pond, partly in the water, recorded in the air; Local Time: Between 12:30 PM and 1:30 PM