Tree frogs are interesting little creatures. They are only about two inches long, but they sure have big voices! Some people say that they sound like a cow bell. I think they sound like a squeaky bicycle wheel.
Many people call them rain frogs. When it rains, they all start croaking together. Each frog can croak 75 times per minute. That's a lot of croaking!
We had some neighbors who moved here from the city. They said that the croaking frogs kept them awake at night. They moved back to the city to get away from the noise!
Can you identify frog calls? We found a great website at http://www.pwrc.usgs.gov/frogquiz
This site has frog calls on it. You can take a quiz to see if you can guess what frog is croaking.
You can also click on FROG CALL LOOKUP to hear individual frog calls. Would you like to hear what a lot of green tree frogs sound like? Just select "green treefrog" under COMMON NAME and click SUBMIT.