About This Study
Spring makes itself known by new sights and also through new sounds. One unmistakable sound of spring is the croaking and calling of frogs, which soon raise a chorus in the wetlands, stream banks, and woodlands across North America.
Citizen scientists are invited to report the first singing frogs of spring. The four
frog species below are known for early spring singing.
We're eager to hear from you—as soon as you hear from these frogs. Help monitor frog populations and phenology by reporting the timing of this spring life cycle event.