Sounds of Scaphiopus couchii - Couch's Spadefoot

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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. The call of Couch's Spadefoot is a nasal groan descending in pitch similar to a lamb bleating. Calls at night from the edge of temporary ponds.

This is a 16 second recording of the advertisement calls of a group of male Couch's Spadefoots calling from puddles at the edge of farmland in Yuma County, Arizona at night in August. Insects and a Rocky Mountain toad can be heard in the background.		This is a 15 second recording of the advertisement call of one close spadefoot made at the same location in Yuma County, Arizona. Other male spadefoots, insects, and a Rocky Mountain toad can be heard in the background.

This is a very short recording of a single call from the solo spadefoot from above.
You can listen to more recordings of Couch's Spadefoots on this cd: Carlos Davidson - Frog and Toad Calls of the Pacific Coast - Cornell Laboratory of Ornithology