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Sounds of North American Frogs is a 1958 album of frog vocalizations narrated by herpetologist Charles M. Bogert. The album includes the calls of 57 species of frogs in 92 separate tracks. The album was released on the Folkways Records label as part of its Science Series. By the 1990s, the album had developed a cult following and was featured ...
Only the male frogs are able to produce mating calls to attract gravid female frogs. When male and non-gravid female frogs are clasped by sexually active male frogs, they produce a release call. In the leopard frog, there are three movements for their sound production. First, there are body wall contradictions to serve as a way for the intra ...
As male density increases, a male's advertisement call is confused with the other calls. This confusion leads to the inability of females to accurately locate the origin of the call. The lowest intensity of a neighbor's call that a male frog is tolerant of is known as the aggressive threshold. When this threshold is reached, a male frog will ...
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This distinct call is rapid and can be heard on a clear night up to a quarter mile away. [4] Their voice has a bit of a nasal quality to it and sounds like a wagon wheel turning that needs oil. It is a harsh, raspy "wreeck" or "reek" sound. [5] The Collinses' mountain chorus frog has a similar call but with a faster pulse rate. [3]
The barking tree frog is known for its loud, strident, barking call. It may also utter a repetitive single-syllable mating call. The calls of the barking tree frog sound like a church bell and have been described as "tonk" and "doonk". [6] It has been known to chorus with other frogs of the same and similar species.
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A fully distended vocal sac in an Australian red-eyed tree frog (Litoria chloris) Italian tree frog (Hyla intermedia) with an inflated vocal sac. The vocal sac is the flexible membrane of skin possessed by most male frogs and toads. The purpose of the vocal sac is usually as an amplification of their mating or advertisement call.