In the evenings in the Sierra foothills, crickets chirp while bullfrogs croak their raspy calls. Bullfrogs were introduced to California but have now become a ubiquitous sound in lakes and ponds across the state. This recording, by Bernie Krause with Wild Sanctuary, was made outside of Red Bluff.
Listen to the evening sounds of the Sierra foothills
David Prasad
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Flickr / Creative Commons
