Tree Frogs in North Dakota: Spotting Guide and Best Places to Start

1. What tree frog species live in North Dakota?

Two main tree frog species call North Dakota home. The boreal chorus frog (Pseudacris maculata) is the most widespread and often heard before you see it. The gray tree frog (Hyla versicolor) is less common, mostly found in forested river valleys. Both are small, about 1 to 2 inches long, and share a talent for climbing.

In North Dakota, tree frogs sightings usually improve when you slow down and match your first stop to where people are most likely to notice them. Use the state wildlife hub and the route guide to narrow your first area, then check access, weather, and distance before you settle in. A short walk with one clear viewing plan often beats covering too much ground, especially when habitat changes fast from open edges to brush, wetlands, timber, shoreline, or neighborhood cover.

2. Where are you most likely to spot tree frogs in North Dakota?

Focus on the eastern counties and the Missouri River corridor. The Sheyenne River Valley, Turtle Mountains, and areas around Devils Lake offer good odds. Look in cattail marshes, woodland edges, and willow thickets. They also show up in backyard ponds if you live near water. For a broader look at the state's wildlife, visit our North Dakota wildlife hub.

Most misses happen when people arrive at the wrong hour or expect nonstop activity. Build around what season or weather patterns help, keep one backup area in mind, and use the animal facts page plus tour planning ideas to compare what a realistic outing looks like in North Dakota. If movement slows, stay longer at one promising spot, listen for calls or watch for edge movement, and reset around weather, light, water, or feeding changes instead of jumping to a totally new area too early.

3. When is the best time of year and weather to see tree frogs?

Late May through early July is prime time. Warm evenings after a rain trigger the most calling activity. Boreal chorus frogs start calling around 50°F, but gray tree frogs wait until the air is warmer, above 60°F. Dawn and dusk are the best windows. Listen for the chorus frog's ascending trill and the gray tree frog's musical flutter.

See our state animal guide for the next step.

4. How can you identify a tree frog from other small frogs?

Check the toes. Tree frogs have enlarged, sticky toe pads for climbing. Their pupils are vertical, unlike the horizontal pupils of leopard frogs. Gray tree frogs can change color from gray to green. Boreal chorus frogs have three dark stripes down the back. Their calls are distinct: chorus frogs sound like a fingernail running over a comb. Learn more at our tree frog animal page.

5. What equipment do you need for tree frog spotting?

Keep it simple: a good headlamp with a red light option to avoid startling them, waterproof boots or muck shoes, and a small field guide or a bird app with frog calls. A flashlight with a strong beam helps find eye shine in the dark. Binoculars are not essential because tree frogs are close to the ground.