Arizona wildlife in desert and mountain habitats

29 Bat Species Found in Arizona: Identification & Facts

Originally written by Tony Subia

Updated by AZ Leisure Staff Writers on October 15, 2026

Flock of bats flying across the evening sky at dusk over a dark Arizona landscape

Arizona is home to 29 confirmed bat species, ranging from tiny insect hunters to large, fast-flying bats and important desert pollinators. These fascinating nocturnal mammals inhabit Sonoran Desert valleys, mountain forests, rocky canyons, caves and riparian corridors throughout the state. Most feed on insects, while nectar-feeding species help pollinate saguaros, agaves and other desert plants. This guide introduces all 29 bat species found in Arizona, explains their habitats and ecological importance, and provides tips for watching bats safely in the wild.

Arizona Bat Facts
Why Bats Matter
Bat Safety
Bat Habitats
Where & When To See Bats
Bats Around Homes
All 29 Bat Species
Desert Pollination
FAQ

Arizona Bat Facts

Arizona has 29 confirmed bat species.
Bats are the only mammals capable of sustained powered flight.
Most Arizona bat species feed primarily on insects.
Nectar-feeding bats help pollinate agaves, saguaros and other desert plants.
Bats are not blind and use both vision and echolocation.
Many species roost in caves, mines, rock crevices, trees, bridges and buildings.
Some Arizona bats migrate, while others remain in the state throughout the year.
Female bats commonly gather in maternity colonies during spring and summer.
Arizona bats are protected by state law and should not be captured, harmed or disturbed.

Why Bats Matter in Arizona

Bats perform essential ecological work throughout Arizona. Most of the state's species feed primarily on insects, including moths, beetles, flies and mosquitoes. By consuming large numbers of night-flying insects, bats help maintain natural ecological balance and can benefit farms, forests, gardens and residential areas.

Arizona is also home to nectar-feeding bats that visit agaves, saguaros and other night-blooming plants. As a bat reaches into a flower for nectar, pollen collects on its head and fur and is transferred to other blossoms. This relationship helps desert plants reproduce while providing bats with food along seasonal migration routes.

Bats use echolocation to navigate and locate prey in darkness. They produce high-frequency sounds and interpret the returning echoes to identify insects, vegetation, water and other objects. Bats are not blind; many have vision comparable to that of other mammals and use both sight and echolocation.

Different Arizona bats use different feeding strategies. Some capture insects while flying, some glean prey from leaves or the ground, and others hover near flowers to drink nectar. Pallid bats are especially well known for feeding on ground-dwelling prey, including beetles, centipedes and scorpions.

Bat Safety and Rabies Precautions

Bats generally avoid people and are highly beneficial, but no wild bat should be handled with bare hands. A small percentage of bats may carry rabies, and a bite or scratch can be difficult to notice. Keep children and pets away from any bat that is on the ground, active during unusual daylight conditions or unable to fly.

What to Do If You Find a Bat on the Ground

Do not touch or pick up the bat with bare hands.
Keep children, dogs and other pets away from the area.
Do not attempt to feed, treat or relocate the bat yourself.
Contact local animal control, your county health department or the Arizona Game and Fish Department for instructions.
If a person or pet may have touched the bat, do not release it unless directed by health or animal-control officials because testing may be necessary.

What to Do After Possible Contact

If a bat bites or scratches someone, or if saliva may have contacted broken skin, the eyes, nose or mouth, wash the affected area thoroughly with soap and water and contact a medical professional or county health department immediately. A veterinarian should be contacted promptly when a pet may have been exposed.

A bat found in a room with a sleeping person, unattended child or someone unable to reliably describe contact should also be reported to public-health officials. Do not assume that no exposure occurred simply because no bite mark is visible.

Where Do Bats Live in Arizona?

Arizona bats occupy nearly every major habitat in the state. Suitable roosts provide shelter from predators, stable temperatures and access to nearby food and water. Depending on the species and season, bats may roost alone or form colonies containing hundreds or thousands of animals.

Desert areas: Rock crevices, caves, abandoned mines, cliffs, bridges and buildings
Riparian corridors: Trees, bridges and rocky areas near rivers, washes, ponds and wetlands
Mountain forests: Tree cavities, loose bark, caves, cliffs and forest structures
Canyons and rocky terrain: Narrow cracks, cliff faces, caves and sheltered ledges
Urban areas: Bridges, roof spaces, wall openings, palm trees and other protected structures
Agricultural areas: Barns, bridges, trees and roosts near fields where insects are abundant

Roosts are especially sensitive during the maternity season, generally from May through September, when females may leave flightless young behind while they forage. Bat exclusions and building repairs should not be attempted during this period without professional guidance.

Where and When to See Bats in Arizona

Mexican long-tongued bat feeding on nectar from a bird feeder in Arizona

The best time to watch bats is during the first hour after sunset on a warm, calm evening. Look over open water, desert washes, riparian corridors, fields and clearings where flying insects gather. Bats often make repeated passes over ponds, lakes and streams as they drink and hunt.

Riparian areas along the Verde, Salt, Gila, San Pedro and Colorado river corridors
Ponds, lakes and wetlands where bats can drink and feed on insects
Desert washes and open spaces near Tucson and southern Arizona
Mountain lakes, meadows and forest edges near Flagstaff and the White Mountains
Bridges and overpasses where bats may emerge from narrow crevices at dusk
Public wildlife-viewing and educational bat events conducted by wildlife organizations

Observe bats quietly from a respectful distance. Do not enter caves, abandoned mines or restricted roosting areas, and never shine bright lights directly into a colony. Disturbance can cause bats to abandon important resting or maternity sites.

Common Myths About Bats

Myth: Bats are blind. Bats can see and also use echolocation to navigate and find food.
Myth: Bats are rodents. Bats belong to the mammalian order Chiroptera and are not rodents.
Myth: Bats intentionally fly into people's hair. Bats are agile fliers and normally avoid people.
Myth: Every bat carries rabies. Only a small percentage of wild bats are infected, but all direct contact should be treated seriously.
Myth: Bats are aggressive. Most bats avoid humans and bite primarily when frightened, trapped or handled.
Myth: Bats serve no useful purpose. Arizona bats control insects and help pollinate important desert plants.
Myth: A bat seen near a house is attacking people. It is usually hunting insects attracted to water, vegetation or outdoor lighting.

Bats Around Homes and Buildings

A bat that enters a house is often lost rather than aggressive. Keep people and pets away and close interior doors to contain it in one room. Before allowing the bat to leave, consider whether anyone may have had direct contact or whether it was found near a sleeping person, unattended child or someone unable to reliably report an exposure. In those situations, contact your county health department or animal control promptly and do not release the bat unless instructed. If exposure can be confidently ruled out, ask local wildlife officials about safe removal or allowing the bat to leave through an exterior opening without handling it.

If a colony is roosting in an attic, wall or roof space, do not seal the entrance while bats are inside. Improper exclusion can trap animals in the building or separate mothers from their young. Contact a qualified wildlife-control professional or the Arizona Game and Fish Department for guidance. Exclusions should generally be avoided during the maternity season from May through September.

Should You Install a Bat House?

A properly designed bat house may provide an alternative roost, but installation does not guarantee occupancy and should not replace necessary repairs to a building. Place bat houses where they receive suitable warmth, have an unobstructed flight path and are protected from frequent human disturbance. Never handle or move bats into a bat house yourself.

29 Bat Species Found in Arizona

Arizona is home to 29 confirmed bat species, representing an impressive variety of sizes, habitats and feeding habits. Some are tiny insect hunters, others are large bats capable of fast, long-distance flight, and three species feed on nectar and help pollinate desert plants. The following list introduces the bat species recorded in Arizona, with their scientific names and distinguishing characteristics.

Allen's big-eared bat (Idionycteris phyllotis) — A woodland bat with exceptionally large ears that help it detect moths and other insects among trees.
Big brown bat (Eptesicus fuscus) — A widespread, adaptable insect eater that roosts in buildings, trees and rock crevices and frequently feeds on beetles.
Big free-tailed bat (Nyctinomops macrotis) — A powerful bat with long, narrow wings that hunts moths high above desert canyons and mountainous terrain.
California leaf-nosed bat (Macrotus californicus) — A desert species recognized by its prominent ears and distinctive noseleaf that often captures insects from vegetation or the ground.
California myotis (Myotis californicus) — A tiny bat that commonly shelters in rock crevices and hunts flying insects around desert washes and woodlands.
Canyon bat (Parastrellus hesperus) — One of North America's smallest bats, often seen emerging early in the evening around rocky desert canyons.
Cave myotis (Myotis velifer) — A medium-sized insect-eating bat that frequently forms colonies in caves, abandoned mines and buildings.
Fringed myotis (Myotis thysanodes) — A woodland bat named for the fringe of stiff hairs along its tail membrane that feeds on moths, beetles and other insects.
Ghost-faced bat (Mormoops megalophylla) — An uncommon bat of southern Arizona distinguished by unusual facial folds and a preference for warm caves and mines.
Greater western mastiff bat (Eumops perotis) — One of North America's largest bats, using long wings to hunt insects over open landscapes while roosting in high rock crevices.
Hoary bat (Aeorestes cinereus) — A large, solitary, migratory bat with silver-tipped fur that usually roosts in trees and feeds on moths.
Lesser long-nosed bat (Leptonycteris yerbabuenae) — An important migratory desert pollinator that feeds on nectar from saguaros, agaves and other flowering plants.
Little brown myotis (Myotis lucifugus) — A small insect-eating bat associated with forests and water that often roosts in tree cavities, buildings and other sheltered places.
Long-eared myotis (Myotis evotis) — A forest bat with unusually long ears that help it locate insects resting on vegetation and other surfaces.
Long-legged myotis (Myotis volans) — A woodland species with relatively long legs that frequently hunts moths above trees and along forest openings.
Mexican free-tailed bat (Tadarida brasiliensis) — A fast-flying bat famous for forming enormous colonies and consuming large quantities of moths and other insects.
Mexican long-nosed bat (Leptonycteris nivalis) — A rare, federally endangered nectar-feeding species confirmed in southeastern Arizona in 2025 that helps pollinate flowering agaves.
Mexican long-tongued bat (Choeronycteris mexicana) — A nectar-feeding bat with an elongated snout and tongue adapted for reaching deep into tubular flowers.
Pallid bat (Antrozous pallidus) — A pale-colored bat with large ears that often captures beetles, crickets, scorpions and other ground-dwelling prey.
Pocketed free-tailed bat (Nyctinomops femorosaccus) — A swift desert bat named for small skin pockets near its hind legs that typically shelters in rocky cliffs and crevices.
Silver-haired bat (Lasionycteris noctivagans) — A dark-furred, migratory tree bat with silvery hair tips that feeds on flying insects.
Southern yellow bat (Dasypterus ega) — A yellowish, foliage-roosting bat associated with warm habitats and palms that feeds on insects.
Southwestern myotis (Myotis auriculus) — A mountain woodland bat that hunts moths and other insects around pine and oak forests.
Spotted bat (Euderma maculatum) — A distinctive bat with black fur, three conspicuous white patches and exceptionally large pink ears.
Townsend's big-eared bat (Corynorhinus townsendii) — A sensitive cave-roosting bat with oversized ears that specializes in capturing moths during slow, maneuverable flight.
Underwood's mastiff bat (Eumops underwoodi) — A large and uncommon southern Arizona bat that hunts flying insects over desert and mountain landscapes.
Western red bat (Lasiurus blossevillii) — A reddish-furred solitary bat that roosts among tree foliage, especially in riparian woodlands, and feeds on insects.
Western small-footed myotis (Myotis ciliolabrum) — A small bat with dark facial features and tiny feet that often shelters in rocky crevices in dry habitats.
Yuma myotis (Myotis yumanensis) — A small bat strongly associated with rivers, ponds and lakes, where it flies close to the water to capture insects.

Nectar-Feeding Bats and Desert Pollination

Arizona's nectar-feeding bats are specially adapted to reach flowers that open at night. Their elongated snouts and tongues allow them to drink nectar from agaves, saguaros and other desert plants. Pollen collects on the bats as they feed and is transferred between flowers during nightly foraging.

The lesser long-nosed bat migrates between Mexico and the southwestern United States and is an important pollinator of agaves and saguaros. The Mexican long-tongued bat also consumes nectar and pollen and may visit hummingbird feeders in southern Arizona. In 2025, wildlife officials confirmed the Mexican long-nosed bat in southeastern Arizona, increasing the state's known bat diversity to 29 species.

These bats depend on connected flowering habitats along their migration routes. Protecting native agaves and allowing some plants to flower can provide valuable food for migrating pollinators.

How to Help Protect Bats in Arizona

Arizona's bats face challenges that include habitat loss, disturbance of roosting colonies, declining water availability and changes to their insect and nectar food sources. Residents and visitors can help protect bats by preserving natural habitats, respecting roosting areas and avoiding unnecessary disturbance.

Protect native agaves, saguaros and other flowering plants that provide nectar for migrating bats.
Preserve mature trees, natural rock crevices and other suitable roosting habitats when practical.
Avoid entering caves, abandoned mines or restricted areas used by bat colonies.
Keep pesticides to a minimum and encourage natural insect populations where appropriate.
Maintain safe water sources and avoid disturbing bats drinking or hunting over ponds and streams.
Consult qualified wildlife professionals before excluding bats from buildings, especially during maternity season.

Frequently Asked Questions About Arizona Bats

How many bat species live in Arizona?

Arizona has 29 confirmed bat species. The total increased when the Mexican long-nosed bat was confirmed in southeastern Arizona.

What is the most common bat in Arizona?

There is no single species that is most common in every part of the state. Frequently encountered species include canyon bats, Mexican free-tailed bats, big brown bats and several species of myotis, depending on the habitat and elevation.

Are bats in Arizona dangerous?

Bats normally avoid people and are not aggressive. However, they are wild animals and should never be handled with bare hands. Any possible bite, scratch or direct contact should be reported promptly to a medical professional or county health department.

Do Arizona bats carry rabies?

A small percentage of bats can carry rabies. Because it is impossible to determine whether a bat is infected simply by looking at it, people and pets should avoid direct contact with all bats.

What should I do if I find a bat on the ground?

Keep children and pets away and do not touch the bat. Contact local animal control, your county health department or the Arizona Game and Fish Department for instructions, especially when contact with a person or pet may have occurred.

When is the best time to see bats in Arizona?

Bats are easiest to observe on warm evenings from spring through early fall. Watch during the first hour after sunset near ponds, streams, desert washes, bridges and open areas where insects are active.

Where do Arizona bats sleep during the day?

Depending on the species, bats may roost in caves, abandoned mines, rock crevices, tree cavities, beneath loose bark, under bridges or inside protected spaces in buildings.

Do bats in Arizona hibernate?

Some Arizona bats enter hibernation or periods of reduced activity during colder months. Others migrate to warmer regions, while certain species may remain active during suitable winter weather.

What do Arizona bats eat?

Most Arizona bats eat insects such as moths, beetles and flies. Nectar-feeding species consume nectar and pollen from agaves, saguaros and other flowering plants. Pallid bats may also capture scorpions and other ground-dwelling prey.

Do bats pollinate saguaro cactus flowers?

Yes. Nectar-feeding bats, particularly lesser long-nosed bats, visit and pollinate saguaro flowers as well as flowering agaves and other desert plants.

Are bats protected in Arizona?

Yes. Arizona bats are protected and may not be collected, harmed or killed. Roost exclusions should be performed responsibly and should not trap bats or separate mothers from their young.

Should I put a bat house in my yard?

A well-designed bat house may provide additional roosting habitat, but occupancy is not guaranteed. It should be installed in an appropriate sunny location with a clear flight path and should not be used as a reason to handle or relocate bats.