Amphibians and Reptiles

Gray Treefrog
(Hyla versicolor)

Photo: Illinois Department of Natural Resources
Gray tree frog

Check out the IDNR’s Wild About Illinois Frogs and Toads! website to hear the calls and learn more about the two gray treefrogs found in Illinois: the gray treefrog (Hyla versicolor) and Cope’s gray treefrog (Hyla chrysoscelis). The Prairie Research Institute’s Illinois Natural History Survey provides the species status in Illinois and more natural history information.