Frogs (Back to Signs of Spring Home Page) Background Sounds of Spring Report the FIRST Frogs you hear singing this spring to Journey North! Spring makes itself known not only by new sights but also through new sounds. One unmistakable spring sound is the croaking and calling of frogs, which will soon raise a chorus in the wetlands, stream sides, and woodlands across North America. This year, we ask your help in LISTENING for the arrival of spring. Four frog species--known for early spring singing--will be included in this study. We're eager to hear from you--as soon as you hear from them. Listen for these Frogs Find your home town on the maps below, and listen for the frog species that live near you. Be sure to practice listening to these frog calls, so you'll know them when you hear them. To listen, click on the frog's name*: *Note: These sound files are large (200-400 K), so download with care. Chorus Frog (Pseudacris triseriata) Spring Peeper (Hyla crucifer) Spotted Chorus Frog (Pseudacris clarki) Pacific Chorus Frog (Hyla pseudacris) Frog Facts Follow this link for additional information about frogs. Copyright 1999 Journey North. All Rights Reserved. Please send all questions, comments, and suggestions to our feedback form