ADW: Frog Calls: "Here's a diverse set of calling frogs. It is not a complete collection for any place in particular, just species we happen to have sounds for. All but one species is North American (can you find the one that isn't?). Click on the call to play the sound, or on Species Account to see more information about that species.
Advertisement calls are the loud calls that male frogs make to attract females. These are the familiar calls most people are familiar with. Some frog species have aggressive calls made by males towards other males, some have distress calls when bitten by a predator, and some have release calls when one male needs to tell another male to let go (mating in frogs can be a bit hectic). If you have animal sound recordings you'd like to share with the world, you can contact us through the link at the bottom of the page. We are always happy to get more sounds and pictures for our site."
Akron Ohio News - Natural sounds in Cuyahoga Valley National Park show signs of spring: "If you hear quacking in the valley, the sound does not necessarily come from a mallard duck. Wood frogs are true frogs whose call resembles the sound of quacking. They can create an exciting spectacle because they are explosive breeders. This means they gather near water in larger numbers to breed over a short period of time before disappearing into the woods for the rest of the year. If you think you see a wood frog, you can confirm it by looking for a dark, masklike patch that extends backwards from their eyes."
Frickin' Frogs! on Flickr - Photo Sharing!