Sounds of Bufo retiformis - Sonoran Green Toad
(=Anaxyrus retiformis)

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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.

This is a 21 second recording of an advertisement chorus of a distant group of Sonoran Green Toads calling at night from a desert wash in Pima County, Arizona in August after heavy rains. Insects are heard in the foreground.		This is a very short recording of the same group of toads.
You can listen to more recordings of Sonoran Green Toads on this cd: Carlos Davidson - Frog and Toad Calls of the Rocky Mountains; Vanishing Voices- Cornell Laboratory of Ornithology