Toad and Frog Facts Missouri Department of Conservation

Journey North Sounds of Spring: Frogs

Boreal Chorus Frog — Edmonton & Area Land Trust

Frogs and Toads found in Missouri – The Frog Lady

Wild Songs - WILDHEART

Gray tree frog Smithsonian's National Zoo and Conservation Biology Institute

Eastern Spadefoot Toad, PDF, Endangered Species

List of Frogs and Toads Found in Missouri with Pictures

Frozen frogs: The skill that helps them survive the winter

Frogs and Toads

Cuban Treefrog (Osteopilus septentrionalis) - Species Profile

Voices of Missouri's Toads and Frogs (1985)

Wild About Illinois Frogs and Toads!

How Does a Toad Protect Itself?

Toads Surprise Scientists By Climbing Trees In UK Woodlands University Of Cambridge