A Guide to California's
Reptiles and Amphibians
Sounds of
Canyon Treefrog - Hyla arenicolor
Cope, 1866
Advertisement Calls An advertisement call is the most well-known call of a frog. It is produced by a male frog in order to attract females during the breeding season and to warn other rival males of his presence. Frogs usually make the calls around bodies of water that are suitable for breeding and egg laying. These calls can be heard during the evening and at night, and sometimes during daylight at the peak of the breeding season. |
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 This is a 3 second recording of two consecutive calls from a single frog at close range calling from a small creek in Pima County, Arizona in July (shown to the right.) |
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| This is a 4 second recording of two consecutive calls of two individual frogs at close range calling from a small creek in Pima County, Arizona (shown to the right.) |
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| This is a 43 second recording of large number of frogs, distant and close, calling at night from a still creek in Washington County, Utah (shown to the right.) |
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| This is a 23 second recording of the nocturnal advertisement calls of a small group of Canyon Treefrogs, some close and some distant, calling from a pool in a small creek in Santa Cruz County, Arizona in August (shown to the right.) Insects and a Great Plains Narrow-mouthed Toad are heard in the background. |
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| Encounter Calls | |
| This is an 11 second edited recording of 3 high-pitched encounter or warning calls made by a frog at close range, followed by two calls made by one close frog and one more distant frog, at a small creek in Pima County, Arizona. |
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| Short Video | |
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| Several male Canyon Treefrogs call at night from the edge of a rocky creek in Arizona. At the end are several examples of the two-part high-pitched encounter call. |
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You can listen to more recordings of Canyon Treefrogs on this cd: Carlos Davidson - Frog and Toad Calls of the Rocky Mountains; Vanishing Voices and on the cd that comes with this book: Lang Elliott, Carl Gerhardt, and Carlos Davidson - The Frogs and Toads of North America - Houghton Mifflin Harcourt.  |
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