Sounds of Rana Pipiens - Northern Leopard Frog
(=Lithobates pipiens)
| 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 advertisement call of Rana pipiens is a low gutteral snore-like rattle, which has been compared to a small motor boat engine. Calls are produced at night and during the day. You can hear more of this call at eNature |
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This is a 7 second recording of a distant frog calling on a sunny afternoon in late April in Grant County, Washington. |
This is a 31 second edited recording of the same frog in Grant County, Washington. | ||
Release Calls A release call is produced by a male frog or an unreceptive female frog when a male frog or other animal gets on its back and grabs its sides in the position used for mating or amplexus. It's a frog's way of saying "Get off my back! Let go!" |
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| This is a 5 second recording of the release calls, or grunts, of a Northern Leopard Frog. |
This is a 1 second recording of a release call - a short squeak - of a Northern Leopard Frog. | ||
You can listen to more recordings of Northern Leopard Frogs on this cd: Carlos Davidson - Frog and Toad Calls of the Pacific Coast - Cornell Laboratory of Ornithology  |
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