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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.
The advertisement of the Green Frog (sometimes called the "banjo frog") is a sharp twang, often repeated several times in succession. this sound is frequently described as sounding like plucking a loose banjo string.
This is a 1 second recording of the advertisement calls of a male Green Frog calling at night in Angelina County, Texas.
This is a 31 second recording of the advertisement calls of several Green Frogs calling at night from a small pond in in Angelina County, Texas. Insects are heard in the background in the beginning, then the loud honking sounds of Hyla cinerea - Green Treefrog, can be heard.
A Green Frog calls from a hidden location in a marsh at night in July in Fairfax County, Virginia.
Other Green Frogs and some very loud Green Treefrogs are calling in the background.