Wood Frog Missouri Department of Conservation

Voices of Missouri's Toads and Frogs (1985)

Mystery frog in Missouri (saved from dehydration, accepted carpenter ant) : r/animalid

Frog Encyclopedia MDPI

Wood Frog Missouri Department of Conservation

Gray Treefrog and Cope's Gray Treefrog

Frozen frogs: The skill that helps them survive the winter

Conservation Commission Amphibian Crossing Program

Frogs and Toads of Missouri, Missouri's Natural Heritage

Wood Frog - Kentucky Department of Fish & Wildlife

Frogs and Toads

GRAY TREEFROGS – “Sticky” toe pads allow these frogs to climb into some interesting places including a few around your home. And there's a good chance, By Missouri Dept. of Conservation

Frogs and Toads Oregon Department of Fish & Wildlife, Little Frogs To Hide

Columbia Spotted Frog - Montana Field Guide