Bats in Pennsylvania: identification guide and where to start looking

1. What are the most common bat species in Pennsylvania?

Pennsylvania's most often seen bats include the big brown bat, little brown bat, eastern red bat, hoary bat, and silver-haired bat. The big brown bat is widespread in both rural and urban areas, while the little brown bat, once very common, has declined due to white-nose syndrome but remains present. Red bats and hoary bats are tree-roosting species often spotted during migration.

2. How can you tell a big brown bat from a little brown bat?

**Size** is the easiest clue: big brown bats are 4-5 inches long, little brown bats are 3-3.5 inches. **Ears**: big browns have short, rounded ears; little browns have longer, more pointed ears. **Nose**: big brown bats have a blunt, rounded nose; little browns have a slightly pointed one. In flight, big browns are slower and more direct, while little browns are quicker and more erratic.

3. Where in Pennsylvania do you usually notice bats first?

The best places to see bats are near water: lakes, ponds, rivers, and streams, especially at dusk. State parks likeRicketts GlenandPresque Isle State Parkare reliable. You also see them around old barns, bridges, and wooded edges. Start near water bodies in the evening for the highest odds.

See ourstate animal guidefor the next step.

4. What is the best time of year to spot bats in Pennsylvania?

Bats are most active from **late April through October**, with peak activity in July and August when pups are learning to fly. Early evening, just after sunset, is the prime window. Spring and fall migrations bring red and hoary bats through the state. Winter sightings are rare because most hibernate or migrate.

5. What do Pennsylvania bats eat and where do they roost?

All Pennsylvania bats are insectivores, eating moths, beetles, mosquitoes, and flies. Roosting sites vary: big browns and little browns use buildings, bat houses, and tree cavities. Red and hoary bats roost in tree foliage, often at the edge of clearings. Silver-haired bats prefer tree bark and sometimes migrate south.

6. Are any bat species in Pennsylvania endangered?

Yes, the **northern long-eared bat** and **Indiana bat** are endangered due to white-nose syndrome. The little brown bat is a candidate for listing. These species are rare to spot. If you find a bat in winter or a group with white fungus on noses, report it to thePennsylvania Game Commission. Most sightings will be of common species.

7. How can you attract bats to your yard in Pennsylvania?

Install a bat house on a pole or building, facing south or east, 15-20 feet up, near a water source. Plant native trees like oaks and pines for roosting. Avoid pesticides so insects are available. Early summer (May-June) is the best time to set up houses. For more details, check ourbat info hub.

8. Show your bat appreciation with wildlife-themed gear

If you enjoy spotting bats, you can wear your interest. Ourbat shirtsand stickers make good field companions. Here are a few favorites:

### Cute Bat Sticker

A fun, subtle way to mark your gear. Perfect for water bottles or field notebooks.Check Price and Availability

### Bat Animal Short-Sleeve T-Shirt

A simple design that shows a realistic bat silhouette. Great for the field.Check Price and Availability

### Baby Bat Cartoon T-Shirt

A lighthearted option for bat fans. The cotton tee is comfortable for casual wear.Check Price and Availability

9. FAQ: Common questions about Pennsylvania bats

**Do bats in Pennsylvania carry rabies?** Less than 1% carry rabies, but never handle a bat on the ground. If you find one, contact a wildlife rehabilitator.

**What should I do if a bat gets inside my house?** Open windows and doors, turn off lights, and leave. The bat will usually find its way out. If not, call animal control.

**Can I keep a bat as a pet?** No. Bats are wild animals and illegal to keep as pets in Pennsylvania.

**Are bats protected in Pennsylvania?** Yes. All native bats are protected by state law. You cannot harm or kill them.

See ourtour planning ideasfor the next step.