Types of Bats in Delaware (Identification Guide)
Learn to spot the nine bat species that call Delaware home, from size and color details to habitat clues.
Delaware hosts nine species of bats. The most common are the big brown bat and eastern red bat. These animals roost in trees, attics, and caves while they hunt insects at night. Spot them by size, fur color, and ear length. Little brown bats measure about three inches with shiny brown coats. Hoary bats reach five inches and show white frosting on their fur. Use this guide to recognize each one during evening flights or roost checks.
What bats live in Delaware?
Nine species make their home here. Big brown bats and eastern red bats rank as the most frequent sightings. Tree bats like the hoary and silver-haired stay in forests. Cave bats such as the little brown and tri-colored use mines and buildings for winter rest. Check Bats in Pennsylvania for nearby species that overlap.
How do you identify the big brown bat?
This bat spans four to five inches with a wingspan up to thirteen inches. Its fur appears dark brown and glossy. Ears stand out as short and rounded. It often roosts in attics or under bark. Look for it flying low over fields at dusk.
How do you identify the little brown bat?
The little brown bat stays small at three inches long. Its fur shines dark brown or black. Ears measure long and pointed. It forms large summer colonies in barns and bridges. White-nose syndrome has reduced numbers in recent years.
How do you identify the eastern red bat?
Eastern red bats reach four inches with reddish orange fur and white shoulder patches. Their wings appear long and narrow for fast flight. They roost alone in tree foliage during summer. Spot the distinctive red glow under porch lights.
How do you identify the hoary bat?
The hoary bat grows to five inches and weighs up to one and a half ounces. Frosted white tips cover its dark fur. Ears stay short and rounded. It migrates long distances and hunts over open water at night.
How do you identify the tri-colored bat?
This small bat measures three inches with tricolor fur bands of brown, yellow, and black. Its ears appear short and rounded. It prefers caves and mines for hibernation. Numbers have dropped sharply due to disease.
How do you identify the silver-haired bat?
Silver-haired bats reach four inches with black fur tipped in silver. Their ears stand tall and pointed. They roost under loose bark in forests. Watch for slow, direct flight patterns near ponds.
How do you identify the northern long-eared bat?
Northern long-eared bats measure three inches with long ears that extend past the nose when folded. Fur stays light brown. They glean insects from leaves in wooded areas. This species now appears on endangered lists.
How do you identify the eastern small-footed bat?
The eastern small-footed bat stays tiny at three inches with black ears and a black face mask. Its wings look short and broad. It roosts in rocky crevices and talus slopes. Sightings remain rare in Delaware.
Where can you buy bat apparel?
Bat designs appear on shirts and stickers for everyday wear. Compare options in the table below to find a fit and style.
| Name | Price | Style |
|---|---|---|
| Cute Bat Sticker | $12.97 | Sticker |
| Bat Animal Short-Sleeve T-Shirt | $21.00 | Short sleeve tee |
| Baby Bat Cartoon T-Shirt | $10.50 | Cartoon print tee |
| Bat Gifts, Bat Shirt, Funny Bat Lover Unisex Tee | $20.29 | Unisex funny tee |
| Cute Bat T-Shirt | $15.98 | Basic cute tee |
| Medieval Bestiary Bat T-Shirt | $20.99 | Medieval print tee |
| Bat Classic T-Shirt | $17.99 | Classic fit tee |
| Bat Lovers T-Shirt | $17.17 | Lover design tee |
| Cute baby bat flying cartoon illustration T-Shirt | $18.24 | Flying cartoon tee |
| Vampire Bat Swarm Horror Halloween Dark Alt Gothic Bats Vampire Horror Spooky Scary Halloween Goth Aesthetic T-Shirt | $19.99 | Horror graphic tee |
| Protect The Sky Puppies Bat Lover T-Shirt | $14.98 | Sky puppies tee |
| Little Brown Bat Anatomy Science Diagram Tees | $16.99 | Anatomy diagram tee |
| Funny Vampire Bat Gift Store Mens Vampire Bat Dad T-Shirt | $13.99 | Dad humor tee |
| Generic Children Bat Wing T Shirt | $8.99 | Kids wing tee |
| American Flag Baseball Shirt Men Women Boys Kids | $17.99 | Baseball flag tee |
Cute Bat Sticker
This sticker works well on laptops or water bottles. The simple bat outline stands out in black and white. Check Price and Availability
Bat Animal Short-Sleeve T-Shirt
This short sleeve tee shows a clear bat silhouette. Cotton fabric holds up through daily use. Check Price and Availability
Baby Bat Cartoon T-Shirt
The cartoon baby bat flies across the chest in bright colors. It fits well for casual days. Check Price and Availability
Bat Gifts, Bat Shirt, Funny Bat Lover Unisex Tee, Short Sleeve Shirt, Animal Quality Gift, Listening to You Design, Bat Appreciation Top
The text design reads that the wearer thinks about bats. It comes in several colors. Check Price and Availability
Cute Bat T-Shirt
A simple cute bat graphic covers the front. The fit stays true to size. Check Price and Availability
Medieval Bestiary Bat T-Shirt
This tee uses an old book style bat drawing. The print stays sharp after washes. Check Price and Availability
Bat Classic T-Shirt
The classic fit includes a save the bats message. Solid colors use preshrunk cotton. Check Price and Availability
Bat Lovers T-Shirt
This tee celebrates bats with a clean graphic. It works for men and women. Check Price and Availability
Cute baby bat flying cartoon illustration T-Shirt, Men's, Size: Adult S, White
A happy baby bat flies on this white tee. The cartoon style suits kids and adults. Check Price and Availability
Vampire Bat Swarm Horror Halloween Dark Alt Gothic Bats Vampire Horror Spooky Scary Halloween Goth Aesthetic T-Shirt
The swarm graphic uses dark tones for a bold look. It prints on soft fabric. Check Price and Availability
Protect The Sky Puppies Bat Lover T-Shirt
The sky puppies phrase pairs with bat art. Colors range from light to dark. Check Price and Availability
Little Brown Bat Anatomy Science Diagram Tees Little Brown Bat Anatomy Science Diagram T-Shirt
The diagram shows wing bones and body parts. It appeals to science fans. Check Price and Availability
Funny Vampire Bat Gift Store Mens Vampire Bat Dad - Like a Regular Dad but Cooler T-Shirt
The dad joke text sits under a bat image. It runs true to size. Check Price and Availability
Generic Children Bat Wing T Shirt Short Sleeve Loose Fit Casual Top Soft Comfortable Tee for Kids Toddler Boy Girl 1 to 7
Bat wings decorate this kids tee. The loose fit works for play. Check Price and Availability
American Flag Baseball Shirt Men Women Boys Kids American Flag Baseball Player Bat Fan Catcher Pitcher USA T-Shirt OEKO-TEX STANDARD 100
The baseball cut adds flag stripes to a bat theme. It fits a range of ages. Check Price and Availability
Check Bats in Maryland for more regional details.
FAQs
What is the most common bat in Delaware? The big brown bat and eastern red bat appear most often across the state.
When do bats in Delaware hibernate? Cave bats enter hibernation from November through March in mines and buildings.
Are bats in Delaware dangerous? Bats avoid people and focus on insects. They carry rabies like other wild mammals, so avoid handling them.
How can I help bats in Delaware? Install bat houses and avoid disturbing roosts. Plant native trees to support insect prey.
See Bats in New Jersey for similar species lists.