You’ll need Real Player to hear the frog calls on this site.
Click the photo of the frog you’d like to see closer up and be amazed. You get a larger photo of the frog and you get the link to hear the frog’s call, as well as a description of the frog’s call. You will also find its proper name and general name in the title on the page.
My favorite by far was the Gray Tree frog, it has a more musical trill to its call. And has a neat silver color to it’s throat.
On the home page you can just listen to the frog calls if you don’t want to spend time looking at the neat photos. Just scroll down the main page, to the “Links to Real Audio files only” section.
And that’s it in a nutshell, just take your time exploring and listening to these sounds of spring!