Bats in Indiana: Where to Look and What Signs to Watch For

Bats are active across Indiana, especially near water and forest edges. The best time to spot them is at dusk, when they emerge to feed on insects. Look for their erratic flight patterns or listen for high-pitched clicks. Evening bats and big brown bats are the most common species. Indiana hosts 14 bat species, many vital to controlling insect populations and maintaining ecosystem health. Most are harmless and beneficial, though a few are federally protected due to declining numbers.

T

By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 2, 2026.

Eastern Red Bat photographed in Indiana

Eastern Red Bat · Peyton Phelps CC BY

Tri-coloured Bat photographed in Indiana

Tri-coloured Bat · EJHV CC BY

Big Brown Bat photographed in Indiana

Big Brown Bat · Public domain CC0

Photos by iNaturalist observers, reused under the licence each observer chose.
Found in Indiana
8
species recorded
13,986
GBIF records
August, June, April
peak months

Yes, bats are in Indiana. Next you'll want:

Verified species, source iNaturalist

6 types of bats recorded in Indiana

6 bat species have a verified observation record in Indiana across bats (order Chiroptera), each with at least 10 confirmed sightings. The full list, ranked by how often each is recorded, is below.

  • Big Brown Bat (Eptesicus fuscus), a species recorded in Indiana1

    Big Brown Bat

    Eptesicus fuscus

    219 records

    Public domain CC0

    Wikipedia
  • Eastern Red Bat (Lasiurus borealis), a species recorded in Indiana2

    Eastern Red Bat

    Lasiurus borealis

    76 records

    Kristof Zyskowski CC BY

    Wikipedia
  • Tri-coloured Bat (Perimyotis subflavus), a species recorded in Indiana3

    Tri-coloured Bat

    Perimyotis subflavus

    41 records

    Public domain CC0

    Wikipedia
  • Silver-haired Bat (Lasionycteris noctivagans), a species recorded in Indiana4

    Silver-haired Bat

    Lasionycteris noctivagans

    33 records

    Kalvin Chan CC BY

    Wikipedia
  • Little Brown Bat (Myotis lucifugus), a species recorded in Indiana5

    Little Brown Bat

    Myotis lucifugus

    12 records

    Public domain CC0

    Wikipedia
  • Evening Bat (Nycticeius humeralis), a species recorded in Indiana6

    Evening Bat

    Nycticeius humeralis

    12 records

    Lauren McLaurin CC BY

    Wikipedia

Plus 6 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations. Photos by iNaturalist observers, reused under the licence each observer chose.

Real sighting data, source iNaturalist

576 verified observations on iNaturalist of bat have been recorded in Indiana, most often in August, June, April.

When bat are recorded in Indiana

Bats are active across Indiana, especially near water and forest edges. The best time to spot them is at dusk, when they emerge to feed on insects. Look for their erratic flight patterns or listen for high-pitched clicks. Evening bats and big brown bats are the most common species. Indiana hosts 14 bat species, many vital to controlling insect populations and maintaining ecosystem health. Most are harmless and beneficial, though a few are federally protected due to declining numbers.

1. Where are bats most likely found in Indiana?

Bats in Indiana are most often found near rivers, lakes, and forest clearings. They roost in tree cavities, under loose bark, and in man-made structures like barns and bridges. Start your search around water bodies at dusk, especially during summer months when insect abundance is highest. Check out ourIndiana wildlife pagefor more regional tips.

In Indiana, bats sightings usually improve when you slow down and match your first stop to where the animal is most likely in the state. Use thestate wildlife huband theroute guideto 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. The Wabash River corridor, along with smaller tributaries and created wetlands, attracts feeding swarms at dusk. Urban and suburban areas with older bridges, church belfries, and larger trees also harbor stable roosts.

2. When is the best time to see bats in Indiana?

The best time to see bats is from late May to September, between sunset and full darkness. Bats emerge shortly after sunset to feed on mosquitoes, moths, and other insects. On warm evenings, activity peaks in the first two hours after dark. Indiana's bats hibernate from November through March, so sightings are rare in winter.

Most misses happen when people arrive at the wrong hour or expect nonstop activity. Build around time-of-day or seasonal behavior, keep one backup area in mind, and use theanimal facts pageplustour planning ideasto compare what a realistic outing looks like in Indiana. 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. Peak activity occurs on warm, humid nights when insects are most abundant. Clear nights in late July and August often produce the most reliable sightings.

3. What signs of bat activity can a beginner spot?

Look for small, dark droppings (guano) on windowsills, porch floors, or below roosts. Bat droppings are crumbly and contain insect fragments. Listen for scratching or squeaking from attics or tree cavities at dusk. Also watch for bats swooping low over water or near streetlights. For more on bat behavior, visit ourbat species hub.

See ourstate animal guidefor the next step.

A better first outing usually comes from patient observation, quiet movement, and a simple checklist tied to tracks, movement, or habitat clues a beginner can use. If conditions look weak, step back to thestate wildlife hub, review theanimal guide, and reset around the next strong window instead of forcing it. The goal is not a perfect sighting every time, it is building a repeatable local route you can return to with better timing, sharper field marks, and a clearer sense of what success looks like for beginners. Early evening is also a good time to observe roosting sites during late spring and summer before bats emerge to forage.

4. What common bat species live in Indiana?

Indiana is home to 14 bat species, including the big brown bat, little brown bat, eastern red bat, and the federally endangered Indiana bat. The big brown bat is the most adaptable and often roosts in buildings. The evening bat is another common resident. Each species has unique roosting and foraging habits. Learn more on ourIndiana wildlife page. The silver-haired bat and hoary bat are migratory species that pass through in spring and fall. The northern long-eared bat, once common, is now threatened by white-nose syndrome, a fungal disease affecting cave-hibernating bats. Tri-colored bats are less common but occasionally spotted in Indiana's southern regions during summer months.

5. How can you attract bats to your yard?

Install a bat house on a pole or building facing south or southeast, at least 10 feet off the ground. Plant native flowers and grasses that attract night-flying insects. A water source like a small pond can also draw bats. Avoid using pesticides, which reduce their food supply. Bats are beneficial for natural pest control.

6. What should you do if you find a bat indoors?

Remain calm. Open windows and doors to the outside and close off the room. Turn off the lights and leave a single light on in the room to guide the bat out. Do not handle the bat with bare hands; if you must, wear thick gloves. If a bat is found in a sleeping area or near a child, contact local animal control for rabies testing.

7. Show your bat appreciation with these shirts and stickers

If you enjoy spotting bats, consider wearing your interest. Easy Street Markets offers bat-themed apparel and accessories. Our Cute Bat Sticker is a great way to decorate your gear. For a comfortable everyday shirt, check out the Bat Animal Short-Sleeve T-Shirt. The Baby Bat Cartoon T-Shirt makes a fun gift for younger bat fans. Browse our fullbat t-shirt collectionfor more designs.

8. Frequently asked questions about bats in Indiana

**Are bats dangerous?** Bats are generally shy and avoid humans. Rabies is rare, but never handle a bat with bare hands. **Do bats hibernate in Indiana?** Yes, most species hibernate from November to March in caves, mines, or buildings. **What should I do if a bat gets in my house?** Follow the steps in section 6 above. **Can bats help control mosquitoes?** Yes, a single bat can eat hundreds of mosquitoes per night, making them valuable for pest control.

See ourtour planning ideasfor the next step.

9. Are bats protected in Indiana?

The Indiana bat is federally endangered and protected under the Endangered Species Act. Harassing or killing an Indiana bat is illegal. The northern long-eared bat is also federally listed as threatened. Indiana state law prohibits harming bats, and many roosts on public lands receive additional protection. Cave and mine closures during hibernation season help protect vulnerable populations. White-nose syndrome has devastated hibernating bat populations in the region, making conservation efforts critical. If you find a bat roost, report it to the Indiana Department of Natural Resources to support monitoring and protection efforts.

10. How do bats behave during different seasons in Indiana?

Spring arrival brings mating season and the search for summer roosts as bats emerge from hibernation in March and April. Pregnant females gather in maternity colonies, giving birth to one pup per year in June or July. Young bats learn to fly by late August and must build fat reserves for hibernation. Fall migration intensifies in September and October as some species move south or deeper into caves and mines. By November, hibernation begins in earnest, and bats enter torpor, a state of reduced metabolic activity that allows survival through winter on stored body fat. Energy conservation is critical during this period, which is why cave disturbance during hibernation season is so harmful.

11. How do humans and bats coexist in Indiana cities and suburbs?

Bats have adapted well to urban and suburban environments, roosting in buildings, bridges, and street infrastructure. Many Indiana communities host bat colonies in old barns, church steeples, and water treatment facilities. This proximity sometimes leads to conflicts when bats enter homes or businesses. Exclusion methods, such as one-way door systems, allow bats to leave but prevent reentry without harming them. Understanding bat presence and implementing humane coexistence strategies protects both bats and human interests. Several Indiana cities have established bat-friendly ordinances protecting known roosts. Working with local wildlife rehabilitators can resolve most human-bat conflicts peacefully.

Gear and field guides

Plan your trip

Best time to see bat in Indiana: August, June, April

See the month-by-month sighting calendar.

When to go

Plan your bat sighting in Indiana

13,986 verified bat records have been logged in Indiana, most recently in 2026. See the GBIF records.

Where to look in Indiana

Planning a trip to see bat? Find places to stay near Indiana Dunes National Park on Booking.com.

Frequently asked questions

What bat species live in Indiana?+

Bats in Indiana are most often found near rivers, lakes, and forest clearings. They roost in tree cavities, under loose bark, and in man-made structures like barns and bridges. Start your search around water bodies at dusk, especially during summer months when insect abundance is highest. Check out ourIndiana wildlife pagefor more regional tips. In Indiana, bats sightings usually improve when you slow down and match your first stop to where the animal is most likely in the state. Use thestate wildlife huband theroute guideto 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. The Wabash River corridor, along with smaller tributaries and created wetlands, attracts feeding swarms at dusk. Urban and suburban areas with older bridges, church belfries, and larger trees also harbor stable roosts.

Where can you see bats in Indiana?+

Bats in Indiana are most often found near rivers, lakes, and forest clearings. They roost in tree cavities, under loose bark, and in man-made structures like barns and bridges. Start your search around water bodies at dusk, especially during summer months when insect abundance is highest. Check out ourIndiana wildlife pagefor more regional tips. In Indiana, bats sightings usually improve when you slow down and match your first stop to where the animal is most likely in the state. Use thestate wildlife huband theroute guideto 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. The Wabash River corridor, along with smaller tributaries and created wetlands, attracts feeding swarms at dusk. Urban and suburban areas with older bridges, church belfries, and larger trees also harbor stable roosts.

When is the best time to see bats in Indiana?+

Bats in Indiana are most often found near rivers, lakes, and forest clearings. They roost in tree cavities, under loose bark, and in man-made structures like barns and bridges. Start your search around water bodies at dusk, especially during summer months when insect abundance is highest. Check out ourIndiana wildlife pagefor more regional tips. In Indiana, bats sightings usually improve when you slow down and match your first stop to where the animal is most likely in the state. Use thestate wildlife huband theroute guideto 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. The Wabash River corridor, along with smaller tributaries and created wetlands, attracts feeding swarms at dusk. Urban and suburban areas with older bridges, church belfries, and larger trees also harbor stable roosts.