It’s actually more of a flirtatious act than an alarm response, said Andy Wood.
The education director for Audubon North Carolina said male frogs and toads generally croak in unison because their combined voices carry a greater distance.
“Really the whole purpose is to attract a female,” Wood said.
While bullfrogs will croak in their deep, booming ways to delineate their territory or section of pond, most of our common toads and frogs have more amorous intentions.
And while most animals are inhibited or scared off by loud noises, frogs are stimulated by them – even by something as jarring as a car backfiring or thunder.
Females, Wood said, rarely croak, although some will make a noise as a release call to a male.
Since the call of each species is different, Wood said researchers use the croaks to find and identify them the same way ornithologists use bird calls to track bird species.
Date posted: July 27, 2010
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