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Advertisement Calls
An advertisement call is the most well-known call of a frog. It is produced by a male during the breeding season to attract females of his own species. It can also serve an agressive function to defend his calling site by warning 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.
The sound of the Eastern Cricket Frog is a series of clicks, sounding like rocks tapped together. The calls start out slowly, then gradually increase in speed.
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This is a 28 second recording of the advertisement calls of a few Eastern Cricket Frogs made in daylight in Anne Arundel County, Maryland, during daylight, with the sounds of wind, birds, and an airplane in the background.
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You can listen to more recordings of Acris crepitans on this cd:
Carlos Davidson - Frog and Toad Calls of the Pacific Coast - Cornell Laboratory of Ornithology
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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