Mammals of Arizona

143 established wild species in Arizona. Plus 14 range-listed species with few or no digitized records.

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Abert's Squirrel (Sciurus aberti)

Abert's Squirrel

Sciurus aberti

Common in Arizona 1,854 sightings
Size 27.9–76.2 cm0.9–2.5 ft Weight 540–971 g1.2–2.1 lb active by day pinyon-juniper woodland

Sightings by month

Allen's big-eared bat roosting on tree bark at night

Allen's Big-eared Bat

Idionycteris phyllotis

Rarely seen in Arizona 21 sightings
Size 10.3–11.8 cm4.1–4.6 in Weight 8–16 g0.3–0.6 oz active by night coastal

Sightings by month

AmericanBadger

American Badger

Taxidea taxus

Common in Arizona 242 sightings
Size 63.9 cm2.1 ft Weight 4–12 kg8.8–26.5 lb active by night grassland

Sightings by month

Beaver swimming low in murky green pond water with only its wet head and back above the surface

American Beaver

Castor canadensis

Occasional in Arizona 186 sightings
Size 60–90 cm2–3 ft Weight 11–32 kg24.3–70.5 lb active day & night river

Sightings by month

Image-American bison rests at hot spring in yellowstone national park 1

American Bison

Bison bison

Common in Arizona 225 sightings
Size 1.9–2 m6.1–6.6 ft Weight 360–1000 kg793.7–2204.6 lb active day & night grassland

Sightings by month

Oso negro (Ursus americanus), Parque natural provincial Tatshenshini-Alsek, Yukón, Canadá, 2017-08-25, DD 85

American Black Bear

Ursus americanus

Common in Arizona 913 sightings
Size 1.2–2 m3.9–6.6 ft Weight 40–250 kg88.2–551.2 lb active by night conifer forest

Sightings by month

Mustela Erminea head

American Ermine

Mustela erminea

Marginal occurrence · 1 record
Size 17–33 cm6.7–13 in Weight 70–260 g2.5–9.2 oz active by night coniferous forest
American hog-nosed skunk walking through dry grassland at night, showing its single broad white back stripe and long pig-like snout

American Hog-nosed Skunk

Conepatus leuconotus

Common in Arizona 280 sightings
Size 44.4–93.4 cm1.5–3.1 ft Weight 1.1–4.5 kg2.4–9.9 lb active by night urban

Sightings by month

Tamiasciurus hudsonicus James Gardens

American Red Squirrel

Tamiasciurus hudsonicus

Common in Arizona 657 sightings
Size 17–23 cm6.7–9.1 in Weight 140–310 g4.9–10.9 oz active by day wetland

Sightings by month

American water shrew swimming at the surface of a stream, seen from above

American water shrew

Sorex palustris

Size 8 cm3.1 in Weight 8–18 g0.3–0.6 oz active day & night river

Sightings by month

Antelope Jackrabbit (Lepus alleni)

Antelope Jackrabbit

Lepus alleni

Common in Arizona 293 sightings
Size 55–67 cm1.8–2.2 ft Weight 2.7–4.5 kg6–9.9 lb active by night desert

Sightings by month

Arizona cotton rat standing in dry grass

Arizona Cotton Rat

Sigmodon arizonae

Common in Arizona 380 sightings
Size 24.9–36.1 cm9.8–14.2 in Weight 172 g6.1 oz active day & night lake

Sightings by month

Arizona gray squirrel (Sciurus arizonensis) DSC 8001zzc

Arizona Gray Squirrel

Sciurus arizonensis

Common in Arizona 2,434 sightings
Size 45–57 cm17.7–22.4 in Weight 600–700 g1.3–1.5 lb active by day sycamore canyon

Sightings by month

Arizona myotis roosting on stonework

Arizona myotis

Myotis occultus

Rarely seen in Arizona 4 sightings
Size 5.3 cm2.1 in Weight 8 g0.3 oz active by night cave

Sightings by month

AI-generated image: Arizona pocket mouse paused on open desert sand at night. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Arizona Pocket Mouse

Perognathus amplus

Common in Arizona 324 sightings
Size 6.1–8.5 cm2.4–3.3 in Weight 9–14 g0.3–0.5 oz active by night sonoran desert

Sightings by month

AI-generated image: Arizona shrew in side profile on wet leaf litter beside mossy log. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Arizona shrew

Sorex arizonae

Rarely seen in Arizona 1 sighting
Size 5–7 cm2–2.8 in Weight 3 g0.1 oz active day & night river

Sightings by month

AI-generated image: Arizona Woodrat on granite boulder in Sonoran desert with prickly pear. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Arizona Woodrat

Neotoma devia

Occasional in Arizona 90 sightings
Size 14–18 cm5.5–7.1 in Weight 90–175 g3.2–6.2 oz active by night rocky outcrops

Sightings by month

Bailey's pocket mouse on desert soil

Bailey's Pocket Mouse

Chaetodipus baileyi

Common in Arizona 1,518 sightings
Size 11.2–12.7 cm4.4–5 in Weight 24–38 g0.8–1.3 oz active by night sonoran desert

Sightings by month

Banner-tailed Kangaroo Rat (Dipodomys spectabilis)

Banner-tailed Kangaroo Rat

Dipodomys spectabilis

Occasional in Arizona 54 sightings
Size 32–42 cm12.6–16.5 in Weight 100–180 g3.5–6.3 oz active by night desert

Sightings by month

Big Brown Bats (Eptesicus fuscus)

Big Brown Bat

Eptesicus fuscus

Occasional in Arizona 123 sightings
Size 7.5 cm3 in Weight 17 g0.6 oz active by night agricultural

Sightings by month

Big free-tailed bat clinging to tree bark with long ears and narrow wings visible

Big Free-tailed Bat

Nyctinomops macrotis

Rarely seen in Arizona 5 sightings
Size 12–16 cm4.7–6.3 in Weight 21 g0.7 oz active by night cave

Sightings by month

New Mexico Bighorn Sheep

Bighorn Sheep

Ovis canadensis

Common in Arizona 1,506 sightings
Size 1.7 m5.5 ft Weight 58–143 kg127.9–315.3 lb active day & night desert

Sightings by month

Live black rat climbing through branches

Black Rat

Rattus rattus

Occasional in Arizona 51 sightings
Size 16–24 cm6.3–9.4 in Weight 75–230 g2.6–8.1 oz active by night agricultural

Sightings by month

Black-footed ferret checking out his new digs (30027077935)

Black-footed Ferret

Mustela nigripes

Rarely seen in Arizona 21 sightings
Size 38–50 cm15–19.7 in Weight 0.7–1.2 kg1.4–2.6 lb active by night great basin desert

Sightings by month

Black-tailed jackrabbit (6785302534)

Black-tailed Jackrabbit

Lepus californicus

Common in Arizona 1,863 sightings
Size 47–63 cm1.5–2.1 ft Weight 1.3–3.6 kg2.9–7.9 lb active by night open desert

Sightings by month

black-tailed prairie dog (Cynomys ludovicianus)

Black-tailed Prairie Dog

Cynomys ludovicianus

Occasional in Arizona 182 sightings
Size 28–36 cm11–14.2 in Weight 0.7–1.5 kg1.5–3.3 lb active by day grassland

Sightings by month

Bobcat (Lynx rufus)

Bobcat

Lynx rufus

Common in Arizona 2,398 sightings
Size 30–60 cm11.8–23.6 in Weight 4–18 kg8.8–39.7 lb active by night forest edge

Sightings by month

Botta's Pocket Gopher (Thomomys bottae)

Botta's Pocket Gopher

Thomomys bottae

Occasional in Arizona 48 sightings
Size 18–27 cm7.1–10.6 in Weight 160–250 g5.6–8.8 oz active day & night woodland

Sightings by month

Grizzly brown bear standing in a green meadow in Yellowstone National Park

Brown Bear

Ursus arctos

Marginal occurrence · 1 record
Size 1–2.8 m3.3–9.2 ft Weight 130–700 kg286.6–1543.2 lb active day & night forest
Brush mouse on a rocky slope

Brush Mouse

Peromyscus boylii

Common in Arizona 588 sightings
Size 10.7 cm4.2 in Weight 24 g0.8 oz active by night chaparral

Sightings by month

Bushy-tailed woodrat peering from forest floor cover at Oregon Caves

Bushy-tailed Woodrat

Neotoma cinerea

Rarely seen in Arizona 2 sightings
Size 22.7 cm8.9 in Weight 286 g10.1 oz active by night coniferous forest

Sightings by month

Cactus Deermouse (Peromyscus eremicus)

Cactus Deermouse

Peromyscus eremicus

Common in Arizona 630 sightings
Size 9.1 cm3.6 in Weight 22 g0.8 oz active by night desert

Sightings by month

California leaf-nosed bat hanging from a cave ceiling, showing its tall spear-shaped nose-leaf and long ears

California Leaf-nosed Bat

Macrotus californicus

Occasional in Arizona 64 sightings
Size 6–7 cm2.4–2.8 in Weight 12–20 g0.4–0.7 oz active by night desert

Sightings by month

California Myotis (Myotis californicus)

California Myotis

Myotis californicus

Rarely seen in Arizona 18 sightings
Size 3–3.5 cm1.2–1.4 in Weight 4 g0.1 oz active by night coastal

Sightings by month

Canyon bat clinging to weathered tree bark

Canyon Bat

Parastrellus hesperus

Occasional in Arizona 192 sightings
Size 6.2–8 cm2.4–3.1 in Weight 3–6 g0.1–0.2 oz active by night desert

Sightings by month

AI-generated image: canyon mouse crouched alert on desert rock at dusk. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Canyon mouse

Peromyscus crinitus

Occasional in Arizona 49 sightings
Size 8.4 cm3.3 in Weight 16 g0.6 oz active by night desert

Sightings by month

Cluster of cave myotis bats roosting on a cave ceiling in Texas

Cave Myotis

Myotis velifer

Rarely seen in Arizona 18 sightings
Size 5–6 cm2–2.4 in Weight 12–15 g0.4–0.5 oz active by night cave

Sightings by month

Chihuahuan Desert pocket mouse resting on lichen-covered rock, close-up of face and whiskers

Chihuahuan Desert Pocket Mouse

Chaetodipus eremicus

Size 7.7 cm3 in Weight 15–23 g0.5–0.8 oz active by night chihuahuan desert

Sightings by month

Chihuahuan grasshopper mouse facing the camera on open rocky ground

Chihuahuan Grasshopper Mouse

Onychomys arenicola

Marginal occurrence · 8 records
Size 11.5 cm4.5 in Weight 25 g0.9 oz active by night chihuahuan desert
Chisel-toothed kangaroo rat crouched on gravelly desert soil

Chisel-toothed kangaroo rat

Dipodomys microps

Rarely seen in Arizona 20 sightings
Size 15.6 cm6.1 in Weight 55 g1.9 oz active by night desert

Sightings by month

Cliff Chipmunk (Neotamias dorsalis)

Cliff Chipmunk

Neotamias dorsalis

Common in Arizona 2,473 sightings
Size 21–25 cm8.3–9.8 in Weight 55–75 g1.9–2.6 oz active by day rocky outcrop

Sightings by month

AI-generated image: Cockrum's Gray Shrew foraging among dry grass and leaf litter in Arizona desert grassland. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy.

Cockrum's Gray Shrew

Notiosorex cockrumi

Marginal occurrence · 6 records
Size 7–9 cm2.8–3.5 in Weight 2–4 g0.1 oz active by night desert grassland

Sightings by month

Two collared peccaries standing together in warm evening light

Collared Peccary

Pecari tajacu

Common in Arizona 4,837 sightings
Size 1.2–1.4 m3.9–4.5 ft Weight 16–27 kg35.3–59.5 lb active day & night cave

Sightings by month

Colorado Chipmunk in natural habitat

Colorado Chipmunk

Neotamias quadrivittatus

Marginal occurrence · 63 records
Size 20–24 cm7.9–9.4 in Weight 62 g2.2 oz active by day wetland
Common golden-mantled ground squirrel on a fallen log, showing its plain face and striped sides

Common Golden-mantled Ground Squirrel

Callospermophilus lateralis

Common in Arizona 437 sightings
Size 23–32 cm9.1–12.6 in Weight 120–350 g4.2–12.3 oz active by day chaparral

Sightings by month

Common Raccoon in Hugh Taylor Birch State Park

Common Raccoon

Procyon lotor

Common in Arizona 994 sightings
Size 40–70 cm1.3–2.3 ft Weight 3.5–9 kg7.7–19.8 lb active by night mixed forest

Sightings by month

Mother Coyote Sitting, Watching Over Den, Photo 1 of 2 (47924154788)

Coyote

Canis latrans

Common in Arizona 4,592 sightings
Size 0.8–1 m2.5–3.3 ft Weight 7–21 kg15.4–46.3 lb active day & night urban

Sightings by month

AI-generated image: Crawford's gray shrew walking through leaf litter with its snout lowered. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Crawford's Gray Shrew

Notiosorex crawfordi

Occasional in Arizona 30 sightings
Size 7–10 cm2.8–3.9 in Weight 3–5 g0.1–0.2 oz active by night desert

Sightings by month

Desert cottontail rabbit (Sylvilagus audubonii) (5-13-11) patagonia lake, scc, az -01 (5720663856)

Desert Cottontail

Sylvilagus audubonii

Common in Arizona 8,589 sightings
Size 35–43 cm13.8–16.9 in Weight 0.7–1.2 kg1.5–2.6 lb active day & night desert

Sightings by month

Desert kangaroo rat leaping across open sand

Desert Kangaroo Rat

Dipodomys deserti

Occasional in Arizona 33 sightings
Size 16.9 cm6.7 in Weight 107 g3.8 oz active by night desert

Sightings by month

POCKETMOUSE, DESERT? (Chaetodipus penicillatus) (7-14-12) 78 circulo montana, patagonia lake ranch estates, scc, az -01 (7578750708)

Desert Pocket Mouse

Chaetodipus penicillatus

Common in Arizona 1,570 sightings
Size 7.7 cm3 in Weight 16 g0.6 oz active by night desert

Sightings by month

Desert spotted skunk walking along a low wall at night, showing its broken white stripe pattern

Desert Spotted Skunk

Spilogale leucoparia

Occasional in Arizona 141 sightings
Size 35–55 cm13.8–21.7 in Weight 200–700 g0.4–1.5 lb active by night coastal

Sightings by month

Desert woodrat facing the camera among desert rocks at night

Desert Woodrat

Neotoma lepida

Common in Arizona 405 sightings
Size 17.1 cm6.7 in Weight 113 g4 oz active by night desert

Sightings by month

AI-generated image: Dwarf Shrew in side profile crossing rocky alpine gravel. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Dwarf Shrew

Sorex nanus

Marginal occurrence · 4 records
Size 5.6 cm2.2 in Weight 2–3 g0.1 oz active day & night great basin desert
Blacklick Woods - Eastern cottontail feeding 1

Eastern Cottontail

Sylvilagus floridanus

Marginal occurrence · 104 records
Size 36–43 cm14.2–16.9 in Weight 0.8–1.5 kg1.8–3.3 lb active day & night lake
Eastern red bat roosting among green leaves, disguised as a dead leaf

Eastern Red Bat

Lasiurus borealis

Marginal occurrence · 9 records
Size 9.3–11.7 cm3.7–4.6 in Weight 7–13 g0.2–0.5 oz active by night desert
Elk (Cervus canadensis)

Elk

Cervus canadensis

Common in Arizona 3,699 sightings
Size 1.6–2.7 m5.2–8.9 ft Weight 178–497 kg392.4–1095.7 lb active day & night forest edge

Sightings by month

European rabbit feeding in dry vegetation

European Rabbit

Oryctolagus cuniculus

Occasional in Arizona 32 sightings
Size 34–50 cm13.4–19.7 in Weight 1–2.5 kg2.2–5.5 lb active by night grassland

Sightings by month

Sciurus niger

Fox Squirrel

Sciurus niger

Rarely seen in Arizona 14 sightings
Size 25.4–38.1 cm10–15 in Weight 804 g1.8 lb active by day river

Sightings by month

Fremont's Squirrel in natural habitat

Fremont's Squirrel

Tamiasciurus fremonti

Common in Arizona 378 sightings
Size 27–35 cm10.6–13.8 in Weight 140–250 g4.9–8.8 oz active by day mixed conifer

Sightings by month

Fringed Myotis (Myotis thysanodes)

Fringed Myotis

Myotis thysanodes

Rarely seen in Arizona 12 sightings
Size 5.4 cm2.1 in Weight 9 g0.3 oz active by night desert

Sightings by month

Fulvous harvest mouse climbing through dry seed heads at night

Fulvous harvest mouse

Reithrodontomys fulvescens

Occasional in Arizona 106 sightings
Size 8.1 cm3.2 in Weight 13 g0.5 oz active by night desert

Sightings by month

Fulvous Pocket Gopher (Megascapheus fulvus)

Fulvous Pocket Gopher

Megascapheus fulvus

Size 20.9–23.1 cm8.2–9.1 in Weight 95 g3.4 oz active by night great basin desert

Sightings by month

Gray fox standing in dappled woodland

Gray Fox

Urocyon cinereoargenteus

Common in Arizona 1,394 sightings
Size 0.8–1.1 m2.5–3.7 ft Weight 3–9 kg6.6–19.8 lb active day & night brushy woodland

Sightings by month

Silver-gray wolf walking along a gravel bank in Alaska

Gray Wolf

Canis lupus

Occasional in Arizona 187 sightings
Size 1.1–1.6 m3.4–5.2 ft Weight 23–80 kg50.7–176.4 lb active day & night cave

Sightings by month

Gray-collared Chipmunk in natural habitat

Gray-collared Chipmunk

Neotamias cinereicollis

Occasional in Arizona 199 sightings
Size 21–24 cm8.3–9.4 in Weight 55–75 g1.9–2.6 oz active by day coniferous forest

Sightings by month

Great Basin Pocket Mouse peering out from beneath desert shrub leaves

Great Basin Pocket Mouse

Perognathus parvus

Size 8.2 cm3.2 in Weight 21–22 g0.7–0.8 oz active by night great basin desert

Sightings by month

Gunnison's Prairie Dog (Cynomys gunnisoni)

Gunnison's Prairie Dog

Cynomys gunnisoni

Common in Arizona 371 sightings
Size 30.5 cm12 in Weight 807 g1.8 lb active by day desert

Sightings by month

Harris' Antelope Squirrel (Ammospermophilus harrisii)

Harris' Antelope Squirrel

Ammospermophilus harrisii

Common in Arizona 2,757 sightings
Size 21.6–25.4 cm8.5–10 in Weight 126 g4.4 oz active by day sonoran desert

Sightings by month

Hispid cotton rat moving through short green grass

Hispid cotton rat

Sigmodon hispidus

Rarely seen in Arizona 9 sightings
Size 18.5 cm7.3 in Weight 160 g5.6 oz active day & night river

Sightings by month

Hispid pocket mouse standing on pale rocky ground at night

Hispid Pocket Mouse

Chaetodipus hispidus

Rarely seen in Arizona 11 sightings
Size 17–23 cm6.7–9.1 in Weight 30–47 g1.1–1.7 oz active by night river

Sightings by month

Holzner cottontail standing on a rocky woodland path

Holzner Cottontail

Sylvilagus holzneri

Occasional in Arizona 104 sightings
Size 36–47 cm14.2–18.5 in Weight 1.3–1.8 kg2.9–4 lb active day & night coniferous forest

Sightings by month

Live hooded skunk in rocky cover at night

Hooded Skunk

Mephitis macroura

Common in Arizona 297 sightings
Size 55.8–79 cm1.8–2.6 ft Weight 0.4–2.7 kg0.9–6 lb active day & night grassland

Sightings by month

Hopi chipmunk feeding in a juniper

Hopi Chipmunk

Neotamias rufus

Marginal occurrence · 4 records
Size 19–23.5 cm7.5–9.3 in Weight 52–62 g1.8–2.2 oz active day & night rocky outcrop

Sightings by month

House mouse in dry plant litter

House Mouse

Mus musculus

Occasional in Arizona 155 sightings
Size 5–10 cm2–3.9 in Weight 12–30 g0.4–1.1 oz active by night agricultural

Sightings by month

Jaguar standing in dense green cover

Jaguar

Panthera onca

Rarely seen in Arizona 4 sightings
Size 1.1–1.9 m3.7–6.1 ft Weight 30–100 kg66.1–220.5 lb active day & night wetland

Sightings by month

Kit fox (Vulpes macrotis) standing in profile at night in desert scrub

Kit Fox

Vulpes macrotis

Occasional in Arizona 98 sightings
Size 37–53 cm14.6–20.9 in Weight 1.6–2.7 kg3.5–6 lb active by night desert

Sightings by month

Lacey's white-ankled mouse clinging to a weathered wooden post, white ankles visible

Lacey's White-Ankled Mouse

Peromyscus laceianus

Marginal occurrence · 3 records
Size 9.2 cm3.6 in Weight 24–39 g0.8–1.4 oz active by night oak-juniper woodland
Least Chipmunk in natural habitat

Least Chipmunk

Neotamias minimus

Occasional in Arizona 26 sightings
Size 10–11 cm3.9–4.3 in Weight 41–47 g1.4–1.7 oz active by day shrubland

Sightings by month

Lesser long-nosed bat hovering at a night-blooming columnar cactus flower, tongue extended to feed

Lesser Long-nosed Bat

Leptonycteris yerbabuenae

Occasional in Arizona 197 sightings
Size 7–9 cm2.8–3.5 in Weight 15–25 g0.5–0.9 oz active by night grassland

Sightings by month

Little pocket mouse moving over pale sandy soil at night

Little pocket mouse

Perognathus longimembris

Occasional in Arizona 122 sightings
Size 10.8–13.2 cm4.3–5.2 in Weight 8 g0.3 oz active by night grassland

Sightings by month

Long-eared myotis peering over weathered wood

Long-eared Myotis

Myotis evotis

Rarely seen in Arizona 7 sightings
Size 8.7–10 cm3.4–3.9 in Weight 7 g0.2 oz active by night shrubland

Sightings by month

Long-legged myotis roosting on tree bark with wings folded

Long-legged Myotis

Myotis volans

Rarely seen in Arizona 7 sightings
Size 8.3–10.6 cm3.3–4.2 in Weight 6–10 g0.2–0.4 oz active by night urban

Sightings by month

Long-tailed pocket mouse perched on a flat rock, whiskers fanned forward and one eye alert, desert gravel in the background

Long-tailed Pocket Mouse

Chaetodipus formosus

Common in Arizona 308 sightings
Size 19.4 cm7.6 in Weight 19 g0.7 oz active by night desert

Sightings by month

Long-tailed vole peering from rocks

Long-tailed Vole

Microtus longicaudus

Occasional in Arizona 87 sightings
Size 13.5 cm5.3 in Weight 50 g1.8 oz active day & night cave

Sightings by month

Long-tailed weasel standing alert in grass with its black-tipped tail curled behind it, Sonoma County, California

Long-tailed Weasel

Neogale frenata

Rarely seen in Arizona 14 sightings
Size 24.8 cm9.8 in Weight 170 g6 oz active day & night wetland

Sightings by month

Merriam's kangaroo rat on desert sand at night

Merriam's Kangaroo Rat

Dipodomys merriami

Common in Arizona 1,884 sightings
Size 21–28 cm8.3–11 in Weight 33–53 g1.2–1.9 oz active by night sonoran desert

Sightings by month

AI-generated image: Merriam's Shrew in side profile on dry soil among rocks. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Merriam's Shrew

Sorex merriami

Rarely seen in Arizona 0 sightings
Size 6.2 cm2.4 in Weight 5 g0.2 oz active day & night desert

Sightings by month

Mesquite mouse (Peromyscus merriami) crouched on the ground at night in desert scrub

Mesquite Mouse

Peromyscus merriami

Occasional in Arizona 68 sightings
Size 9.1 cm3.6 in Weight 22 g0.8 oz active by night riparian

Sightings by month

Mexican Fox Squirrel in natural habitat

Mexican Fox Squirrel

Sciurus nayaritensis

Common in Arizona 630 sightings
Size 50–57 cm19.7–22.4 in Weight 600–950 g1.3–2.1 lb active by day mixed conifer

Sightings by month

Tadarida brasiliensis - Bahamas - Long Island (sic) - Cartwright Cave - March 2006 - 2

Mexican Free-tailed Bat

Tadarida brasiliensis

Occasional in Arizona 215 sightings
Size 3.1–4.1 cm1.2–1.6 in Weight 7–12 g0.2–0.4 oz active by night cave

Sightings by month

Mexican long-tongued bat hovering at an agave flower cluster with tongue extended toward the blossoms

Mexican Long-tongued Bat

Choeronycteris mexicana

Occasional in Arizona 160 sightings
Size 8 cm3.1 in Weight 10–20 g0.4–0.7 oz active by night coniferous forest

Sightings by month

Mexican woodrat on a bed of pine needles, showing its gray-brown coat and large rounded ears

Mexican Woodrat

Neotoma mexicana

Occasional in Arizona 172 sightings
Size 19.1 cm7.5 in Weight 140–185 g4.9–6.5 oz active by night coniferous forest

Sightings by month

Mogollon Vole (Microtus mogollonensis)

Mogollon Vole

Microtus mogollonensis

Rarely seen in Arizona 17 sightings
Size 10–13 cm3.9–5.1 in Weight 28–50 g1–1.8 oz active day & night grassland

Sightings by month

AI-generated image: Montane Shrew in side profile on mossy forest floor. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Montane Shrew

Sorex monticolus

Occasional in Arizona 25 sightings
Size 6.8 cm2.7 in Weight 6 g0.2 oz active day & night riparian

Sightings by month

Montane vole peering out from lichen-covered alpine rocks

Montane Vole

Microtus montanus

Rarely seen in Arizona 10 sightings
Size 14–22 cm5.5–8.7 in Weight 35 g1.2 oz active day & night montane forest

Sightings by month

Cow moose standing in a marshy Alaska wetland

Moose

Alces alces

Marginal occurrence · 1 record
Size 2.4–3.1 m7.9–10.2 ft Weight 200–490 kg440.9–1080.3 lb active day & night wetland
Mountain cottontail in dry western woodland edge

Mountain Cottontail

Sylvilagus nuttallii

Occasional in Arizona 25 sightings
Size 27.9–38.1 cm11–15 in Weight 0.6–1.1 kg1.3–2.4 lb active day & night coniferous forest

Sightings by month

Mountain Lion (Puma concolor)

Mountain Lion

Puma concolor

Common in Arizona 596 sightings
Size 1–1.5 m3.3–5.1 ft Weight 36–120 kg79.4–264.6 lb active day & night montane forest

Sightings by month

Mule Deer (Odocoileus hemionus)

Mule Deer

Odocoileus hemionus

Common in Arizona 4,119 sightings
Size 1.3–1.7 m4.1–5.5 ft Weight 55–150 kg121.3–330.7 lb active day & night river

Sightings by month

Muskrats resting on a floating log in open water

Muskrat

Ondatra zibethicus

Occasional in Arizona 52 sightings
Size 25–36 cm9.8–14.2 in Weight 0.6–2 kg1.3–4.4 lb active day & night wetland

Sightings by month

Deer Mouse (Peromyscus maniculatus) (9310532204)

North American Deermouse

Peromyscus maniculatus

Common in Arizona 5,670 sightings
Size 8–10 cm3.1–3.9 in Weight 21 g0.7 oz active by night river

Sightings by month

Erethizontidae Erethizon dorsatum 3.2

North American Porcupine

Erethizon dorsatus

Common in Arizona 227 sightings
Size 60–90 cm2–3 ft Weight 3.5–12 kg7.7–26.5 lb active by night mixed forest

Sightings by month

River Otter (Lontra canadensis)

North American River Otter

Lontra canadensis

Occasional in Arizona 63 sightings
Size 0.7–1.1 m2.2–3.5 ft Weight 5–15 kg11–33.1 lb active day & night river

Sightings by month

Northern grasshopper mouse walking beside desert grass

Northern Grasshopper Mouse

Onychomys leucogaster

Occasional in Arizona 30 sightings
Size 12.7 cm5 in Weight 33 g1.2 oz active by night grassland

Sightings by month

Hoary bat in flight against blue sky, wings spread to show its yellow throat patch and heavily frosted fur

Northern Hoary Bat

Lasiurus cinereus

Occasional in Arizona 85 sightings
Size 13–15 cm5.1–5.9 in Weight 26 g0.9 oz active by night cave

Sightings by month

Northern pocket gopher in low vegetation

Northern pocket gopher

Thomomys talpoides

Rarely seen in Arizona 0 sightings
Size 22.9 cm9 in Weight 60–160 g2.1–5.6 oz active day & night river

Sightings by month

Northern pygmy mouse tucked into dry grass cover in Texas

Northern Pygmy Mouse

Baiomys taylori

Rarely seen in Arizona 2 sightings
Size 7.2 cm2.8 in Weight 7 g0.2 oz active day & night urban

Sightings by month

Northern rock mouse peering out from cover with large ears and long whiskers

Northern Rock Mouse

Peromyscus nasutus

Rarely seen in Arizona 11 sightings
Size 10.2 cm4 in Weight 28 g1 oz active by night desert

Sightings by month

Live Norway rat beside shallow water

Norway Rat

Rattus norvegicus

Rarely seen in Arizona 12 sightings
Size 15–28 cm5.9–11 in Weight 140–500 g0.3–1.1 lb active by night urban

Sightings by month

Wild ocelot standing alert on a mossy branch in a Brazilian forest

Ocelot

Leopardus pardalis

Marginal occurrence · 2 records
Size 40–50 cm15.7–19.7 in Weight 7–15.5 kg15.4–34.2 lb active by night coastal
Ord's kangaroo rat standing in profile, showing its huge hind feet and long tufted tail

Ord's Kangaroo Rat

Dipodomys ordii

Occasional in Arizona 57 sightings
Size 21–36.5 cm8.3–14.4 in Weight 50 g1.8 oz active by night great basin desert

Sightings by month

Pallid bat roosting on a cave wall

Pallid Bat

Antrozous pallidus

Common in Arizona 306 sightings
Size 6–8.5 cm2.4–3.3 in Weight 14–25 g0.5–0.9 oz active by night desert scrub

Sightings by month

Pinyon mouse under loose bark showing large ears and long tail

Pinyon mouse

Peromyscus truei

Occasional in Arizona 92 sightings
Size 10.2 cm4 in Weight 33 g1.2 oz active by night pinyon-juniper woodland

Sightings by month

Plains harvest mouse close-up among dry grass stems and twigs

Plains Harvest Mouse

Reithrodontomys montanus

Rarely seen in Arizona 1 sighting
Size 7.6 cm3 in Weight 10 g0.4 oz active by night grassland

Sightings by month

Apache pocket mouse, a subspecies of the plains pocket mouse, eating seeds on sandy ground

Plains pocket mouse

Perognathus flavescens

Rarely seen in Arizona 12 sightings
Size 6.9 cm2.7 in Weight 9 g0.3 oz active by night desert

Sightings by month

AI-generated image: Pocketed free-tailed bat roosting on tree bark, large joined wrinkled ears and free tail visible. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Pocketed Free-tailed Bat

Nyctinomops femorosaccus

Rarely seen in Arizona 9 sightings
Size 11.2 cm4.4 in Weight 15 g0.5 oz active by night cave

Sightings by month

Pronghorn buck standing in a meadow of yellow wildflowers

Pronghorn

Antilocapra americana

Common in Arizona 1,502 sightings
Size 1.2–1.5 m3.9–4.9 ft Weight 32–70 kg70.5–154.3 lb active day & night grassland

Sightings by month

Red Fox (Vulpes vulpes)

Red Fox

Vulpes vulpes

Rarely seen in Arizona 11 sightings
Size 43 cm16.9 in Weight 5–10 kg11–22 lb active day & night desert

Sightings by month

Ringtail standing on rocks at night with its black-and-white banded tail visible

Ringtail

Bassariscus astutus

Common in Arizona 426 sightings
Size 30–42 cm11.8–16.5 in Weight 0.7–1.1 kg1.5–2.5 lb active by night urban

Sightings by month

Rock Pocket Mouse (Chaetodipus intermedius)

Rock Pocket Mouse

Chaetodipus intermedius

Common in Arizona 595 sightings
Size 8.4–11.2 cm3.3–4.4 in Weight 15 g0.5 oz active by night rocky outcrop

Sightings by month

Rock squirrel perched on a sunlit boulder

Rock Squirrel

Otospermophilus variegatus

Common in Arizona 7,393 sightings
Size 43–53 cm16.9–20.9 in Weight 450–875 g1–1.9 lb active by day lake

Sightings by month

Round-tailed Ground Squirrel (Xerospermophilus tereticaudus)

Round-tailed Ground Squirrel

Xerospermophilus tereticaudus

Common in Arizona 3,013 sightings
Size 20–28 cm7.9–11 in Weight 125 g4.4 oz active by day desert

Sightings by month

Silky pocket mouse crouched on sandy grassland ground

Silky Pocket Mouse

Perognathus flavus

Occasional in Arizona 74 sightings
Size 9.5–11.8 cm3.7–4.6 in Weight 6–9 g0.2–0.3 oz active by night grassland

Sightings by month

Silver-haired bat tucked into loose bark

Silver-haired Bat

Lasionycteris noctivagans

Occasional in Arizona 29 sightings
Size 9.5–11.5 cm3.7–4.5 in Weight 11 g0.4 oz active by night river

Sightings by month

AI-generated image: Southern grasshopper mouse alert on desert sand at night, pale fawn upperparts and white underparts. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Southern Grasshopper Mouse

Onychomys torridus

Common in Arizona 632 sightings
Size 10.3 cm4.1 in Weight 22 g0.8 oz active by night desert

Sightings by month

Southern meadow jumping mouse in grass and leaf litter

Southern Meadow Jumping Mouse

Zapus luteus

Rarely seen in Arizona 2 sightings
Size 18–24 cm7.1–9.4 in Weight 12–30 g0.4–1.1 oz active by night moist grassland

Sightings by month

Southern pocket gopher in pine litter

Southern Pocket Gopher

Megascapheus umbrinus

Common in Arizona 426 sightings
Size 20–25 cm7.9–9.8 in Weight 100–200 g3.5–7.1 oz active day & night sky island montane meadows

Sightings by month

Southern red-backed vole feeding among sunflower seeds on snow

Southern Red-backed Vole

Clethrionomys gapperi

Marginal occurrence · 132 records
Size 12–16.5 cm4.7–6.5 in Weight 6–42 g0.2–1.5 oz active by night mixed forest
Southwestern myotis roosting on a weathered wooden beam

Southwestern Myotis

Myotis auriculus

Rarely seen in Arizona 2 sightings
Size 5.4 cm2.1 in Weight 8 g0.3 oz active by night mixed conifer

Sightings by month

Spotted bat facing forward with huge pale ears and white shoulder patches

Spotted Bat

Euderma maculatum

Marginal occurrence · 9 records
Size 12.6 cm5 in Weight 16–20 g0.6–0.7 oz active by night rocky outcrop

Sightings by month

Spotted ground squirrel sitting upright at a burrow entrance, its back covered in scattered white spots

Spotted Ground Squirrel

Xerospermophilus spilosoma

Occasional in Arizona 71 sightings
Size 18–25 cm7.1–9.8 in Weight 100–200 g3.5–7.1 oz active by day grassland

Sightings by month

AI-generated image: Stephen's Woodrat in side profile on rock beside stick nest at night. No public-domain photograph of this species exists. This image was generated with AI from verified reference material and reviewed by our editorial team for accuracy

Stephen's Woodrat

Neotoma stephensi

Occasional in Arizona 28 sightings
Size 17.1 cm6.7 in Weight 125 g4.4 oz active by night pinyon-juniper woodland

Sightings by month

Mephitis mephitis in Dierenpark Zie-ZOO

Striped Skunk

Mephitis mephitis

Common in Arizona 697 sightings
Size 46.5–81.5 cm1.5–2.7 ft Weight 0.6–6.3 kg1.3–13.9 lb active by night grassland

Sightings by month

Tawny-bellied cotton rat emerging from beneath a log in desert grassland

Tawny-Bellied Cotton Rat

Sigmodon fulviventer

Rarely seen in Arizona 15 sightings
Size 18 cm7.1 in Weight 196 g6.9 oz active day & night grassland

Sightings by month

Thirteen-lined ground squirrel crouched beside short grass

Thirteen-lined ground squirrel

Ictidomys tridecemlineatus

Rarely seen in Arizona 2 sightings
Size 17–30 cm6.7–11.8 in Weight 173 g6.1 oz active by day grassland

Sightings by month

Townsend's big-eared bat roosting on a cave wall

Townsend's Big-eared Bat

Corynorhinus townsendii

Occasional in Arizona 93 sightings
Size 5.8 cm2.3 in Weight 9–11 g0.3–0.4 oz active by night coastal

Sightings by month

Uinta Chipmunk in natural habitat

Uinta Chipmunk

Neotamias umbrinus

Occasional in Arizona 91 sightings
Size 14.2 cm5.6 in Weight 52 g1.8 oz active by day montane forest

Sightings by month

Underwood's bonneted bat close-up of the face, bonnet-like ears, and sandy-brown shoulder fur

Underwood's Bonneted Bat

Eumops underwoodi

Rarely seen in Arizona 3 sightings
Size 11.2 cm4.4 in Weight 60 g2.1 oz active by night cave

Sightings by month

Virginia Opossum clinging to a tree branch in a snowy winter woodland

Virginia Opossum

Didelphis virginiana

Occasional in Arizona 111 sightings
Size 40.8 cm16.1 in Weight 1.1–1.6 kg2.5–3.6 lb active by night river

Sightings by month

Western mastiff bat

Western Bonneted Bat

Eumops perotis

Rarely seen in Arizona 9 sightings
Size 15.7–18.3 cm6.2–7.2 in Weight 57 g2 oz active by night desert

Sightings by month

Western deer mouse sheltering in a rock crevice

Western Deer Mouse

Peromyscus sonoriensis

Occasional in Arizona 51 sightings
Size 12–20 cm4.7–7.9 in Weight 15–32 g0.5–1.1 oz active by night river

Sightings by month

Western harvest mouse moving through dry stems and gravel

Western Harvest Mouse

Reithrodontomys megalotis

Occasional in Arizona 116 sightings
Size 11.8–17 cm4.6–6.7 in Weight 11 g0.4 oz active by night wetland

Sightings by month

Little brown myotis roosting alertly on a wooden beam

Western Little Brown Myotis

Myotis lucifugus

Rarely seen in Arizona 0 sightings
Size 8–9.5 cm3.1–3.7 in Weight 6–13 g0.2–0.5 oz active by night cave

Sightings by month

Western red bat roosting among green leaves, showing rusty-orange fur and dark wing membranes

Western Red Bat

Lasiurus frantzii

Occasional in Arizona 31 sightings
Size 10–12 cm3.9–4.7 in Weight 9–15 g0.3–0.5 oz active by night desert

Sightings by month

Western small-footed myotis roosting on wood with its dark face mask visible

Western Small-footed Myotis

Myotis ciliolabrum

Occasional in Arizona 31 sightings
Size 8–10 cm3.1–3.9 in Weight 4–5 g0.1–0.2 oz active by night desert

Sightings by month

Western spotted skunk with a clear broken-stripe pattern, alert on a branch at night

Western Spotted Skunk

Spilogale gracilis

Rarely seen in Arizona 6 sightings
Size 35–45 cm13.8–17.7 in Weight 336–734 g0.7–1.6 lb active by night mixed forest

Sightings by month

Western water shrew at the grassy edge of a stream

Western Water Shrew

Sorex navigator

Rarely seen in Arizona 24 sightings
Size 13–17 cm5.1–6.7 in Weight 13 g0.5 oz active day & night river

Sightings by month

Western yellow bat roosting against tree bark with wings folded

Western Yellow Bat

Lasiurus xanthinus

Occasional in Arizona 38 sightings
Size 7.5 cm3 in Weight 16 g0.6 oz active by night desert

Sightings by month

White-footed mouse on a fallen log in leaf litter

White-footed Mouse

Peromyscus leucopus

Occasional in Arizona 51 sightings
Size 10.1 cm4 in Weight 20–30 g0.7–1.1 oz active by night urban

Sightings by month

White-nosed coati (Nasua narica) Peten

White-nosed Coati

Nasua narica

Common in Arizona 2,149 sightings
Size 0.8–1.3 m2.6–4.3 ft Weight 3–6 kg6.6–13.2 lb active by day oak-sycamore canyon

Sightings by month

White-tailed antelope squirrel showing the pale flank stripe and white tail underside

White-tailed Antelope Squirrel

Ammospermophilus leucurus

Common in Arizona 306 sightings
Size 18.8–23.9 cm7.4–9.4 in Weight 97 g3.4 oz active by day pinyon-juniper woodland

Sightings by month

White-tailed Deer (Odocoileus virginianus)

White-tailed Deer

Odocoileus virginianus

Common in Arizona 5,202 sightings
Size 0.9–2.2 m3.1–7.2 ft Weight 68–136 kg149.9–299.8 lb active day & night mixed forest

Sightings by month

Whitethroat Woodrat - (Neotoma albigula) (9853933874)

White-throated Woodrat

Neotoma albigula

Common in Arizona 1,371 sightings
Size 19.6 cm7.7 in Weight 191 g6.7 oz active by night sonoran desert

Sightings by month

Adult wild boar foraging in grass

Wild Boar

Sus scrofa

Rarely seen in Arizona 12 sightings
Size 85–90 cm2.8–3 ft Weight 40–50 kg88.2–110.2 lb active day & night lake

Sightings by month

Yellow-nosed Cotton Rat moving through leaf litter and rocks

Yellow-nosed Cotton Rat

Sigmodon ochrognathus

Occasional in Arizona 148 sightings
Size 18–25 cm7.1–9.8 in Weight 50–95 g1.8–3.4 oz active day & night grassland

Sightings by month

Yuma myotis crouched on the ground at night

Yuma Myotis

Myotis yumanensis

Rarely seen in Arizona 12 sightings
Size 8.4–9.9 cm3.3–3.9 in Weight 6 g0.2 oz active by night coniferous forest

Sightings by month