This spring has brought an abundance of people to visit the Preserve and with it many more sightings of gray tree frogs than usual. There are two tree frogs that live in Wisconsin. The Eastern gray tree frog breeds in wetlands and the Cope’s gray tree frog likes forest edges and oak savannas. They look nearly identical and can be distinguished from other Wisconsin frogs by their suction-cup toe-pads. Both species can be gray, brown, or green and are capable of changing color based on temperature or their surroundings. The only way they can be distinguished from each other is by their call. Click the links to hear the Eastern gray tree frog call and Cope’s gray tree frog call.
Check out the photos of gray tree frogs shared by Preserve visitors.