American bullfrog Calls VBR MP3 537 kb, American bullfrog Calls OGG format 75 kb which is a free, open standard container format maintained by the Xiph.Org Foundation. The OGG format is unrestricted by software patents and is designed to provide for efficient streaming and manipulation of high quality digital multimedia.
Copyrights and Credits: USGS authored or produced data and information are considered to be in the U.S. public domain.
Photograph and sound recording produced by the US Geological Survey, Upper Midwest Environmental Sciences Center.
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Credit: U.S. Geological Survey, Department of the Interior/USGS, U.S. Geological Survey/photo by Jane Doe (if the photographer/artist is known)
Artist/Composer: U.S. Geological Survey
Keywords: American bullfrog; calls
Creative Commons license: Public Domain