Compressed from .wav format into .mp3 delivery format
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.
"An audio recording of a nocturnal advertisement chorus of many great plains toads, calling from a small pond in the grasslands of Cochise County, Arizona in August." Source: Gary Nafis, http://www.californiaherps.com/.