Bats in North Dakota: identification guide and where to start looking

Are there bats in North Dakota?

Bats are active throughout North Dakota, with the highest diversity in the eastern half of the state. They roost in tree cavities, barns, and even under bridges. If you're near a water source like the Missouri River or Lake Sakakawea at sunset, your odds of seeing them go way up.

What are the most common bat species in North Dakota?

The big brown bat and little brown bat are the species you are most likely to see. Other species include the hoary bat, eastern red bat, and silver-haired bat. The hoary bat is larger and has frosted fur, while the little brown bat is smaller with glossy brown fur. Take a look at ourbat identification hubfor more species details.

How to identify bats in North Dakota?

Focus on size, fur color, and flight style. Big brown bats are 4-5 inches long with a wingspan up to 13 inches. Little brown bats are smaller, about 3-4 inches. Hoary bats have a distinct whitish collar and heavy wings. Watch for erratic fluttering near treetops or fast, direct flight over open water.

Where are the best places to see bats in North Dakota?

Your best odds are along the Missouri River, near Lake Sakakawea, and around state parks like Fort Abraham Lincoln or Turtle Mountain. Bridges over rivers are often daytime roosts. Check near old barns and abandoned buildings in rural areas. For a full list of spots, see ourNorth Dakota wildlife page.

When is the best time of year to spot bats?

From late April through September, bats are active in North Dakota. The best months are June to August when insect prey is abundant. Go out right around sunset, especially on warm evenings. In cooler spring or fall, bats may emerge later or not at all if temperatures drop below 50 degrees Fahrenheit.

What do bats look like in flight?

Bats have a distinctive fluttering flight, unlike birds. Their wings flap in a continuous motion, and they often make sudden twists and turns. In good light you can see their pointed ears and short, fur-covered body. The hoary bat has a slower, more powerful flight with broad wings. Always look up around streetlights where insects gather.

How do bats change appearance through the seasons?

Early spring arrivals in April often look scraggly with worn fur from winter hibernation. By mid-summer, bats have sleek, well-groomed coats and are at peak weight. In late August and September, some species develop heavier fur as they prepare for migration or hibernation. Silver-haired bats become more visible in fall during migration to southern hibernation sites. These seasonal shifts affect how vibrant their coloring appears and how strong their body shape looks, so don't be surprised if a bat in May looks noticeably different from one in July.

What are common lookalikes?

Bats are often confused with swallows or nighthawks. Swallows have a more graceful, swooping flight with longer tails and pointed wings. Nighthawks have a blunt head and white wing patches. If you see a creature fluttering erratically rather than swooping smoothly, it's likely a bat. For more tips, visit ourbat identification guide.

How can you identify bats at night using behavior and sound?

If you hear rapid clicking or chirping sounds near dusk, bats are likely nearby using echolocation. Their erratic, zigzagging flight pattern is a dead giveaway, especially over water or near lights. Bats also tend to fly at consistent altitudes and may return to the same routes night after night. Listen for the distinctive ultrasonic calls that some species produce; even though most are above human hearing, low-frequency chirps from hoary bats and red bats can sometimes be detected by ear on quiet evenings.

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What should you do if you encounter a bat?

If you see a grounded or injured bat, keep your distance and contact the North Dakota Game and Fish Department. Never handle a bat with bare hands due to rabies risk. If a bat enters your home, open windows and let it exit naturally, or gently guide it outside using a broom or cardboard. Bats provide enormous value by eating tons of mosquitoes and other insects, so protection and respect are key to healthy coexistence in North Dakota.

Frequently asked questions about bats in North Dakota

**Do bats hibernate in North Dakota?** Yes, most species hibernate in caves or mines during winter. Big brown bats sometimes stay in buildings.

**Are bats dangerous?** Northern bats are not aggressive, but avoid handling them. They can carry rabies, though it's rare.

**How can I attract bats to my yard?** Provide a bat house near water and away from bright lights. Planting native flowers that attract moths helps.

**What is the largest bat in North Dakota?** The hoary bat, with a wingspan up to 16 inches.

For more details, check ourNorth Dakota bat guide.

See ourtour planning ideasfor the next step.