CDR copy FW-ASCH-7RR-0747 consists of frog calls which were used in conjunction with a presentation entitled "Amphibean Calls and Their Significance," presented by Charles M. Bogert at an August 1954 ...
Missouri frogs breed between February and July. Listen to clips from the Missouri Department of Conservation to hear the differences between the breeding calls of 16 frogs and toads. Click on the ...
Sounds of North American frogs [sound recording] : the biological significance of voice in frogs / conceived, narrated, and documented, with field recordings, by Charles M. Bogert, with the ...
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