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U.S. Fish & Wildlife Service

Mammals
of Cabeza Prieta NWR

In order to survive in the harsh Sonoran desert environment, mammals adapt through a variety of means, including nocturnal life styles, extreme efficiency in obtaining and conserving water (some live on water extracted from plant life only), and protective coloration.

Water sources on the Refuge are natural rock basins called "tinajas," a few man-made storage areas, flowing washes after rains, and one intermittent seep. Natural adaptation has enabled species to live for thousands of years with only the available resources.

While the majestic bighorn and rare pronghorn receive a lot of attention, there are more than 40 other species of mammals whose presence is necessary to maintain the ecological balance of the refuge. You will notice that bats, squirrels, mice, rats, and gophers make up the majority of mammal residents on Cabeza. These small creatures play a major part in sustaining the chain of life that includes the larger and better-known residents.

So when you catch a glimpse of any of these shy desert dwellers, you have had a unique opportunity to experience a part of this complex and fragile Sonoran desert ecosystem.

[Bats] [Rabbits and Hares] [Squirrels] [Pocket Gophers] [Pocket Mice] [Kangaroo Rats] [Mice and Rats]
[Doglike and Foxlike Animals] [Raccoons and Relatives] [Weasels and Relatives] [Cats] [Peccaries]
[Deer and Relatives] [Pronghorns] [Sheep and Relatives] [Unverified Species] [Suggested Reading]

The following list includes mammals that have been verified within
Cabeza Prieta NWR boundaries.

*denotes endangered status

Bats
California leaf-nosed bat
   Macrotus californicus
Lesser long-nosed bat
   Leptonycteris curasoae verbabuenae*
California myotis
  Myotis californicus stephensi
Pallid bat
   Antrozous pallidus pallidus
Western pipistrelle
   Pipistrellus hesperus hesperus
Townsend's big-eared bat
   Plecotus townsendii
Big free-tailed bat
   Tadarida macrotis
Big brown bat
   Eptesicus fuscus pallidus
Hoary bat
   Lasiurus cinereus
Pocketed free-tailed bat
   Nyctinomops femorosacca
Silver-haired bat
   Lasionycteris noctivagans

[Back to Index]

Rabbits and Hares

Squirrels
Antelope jackrabbit
   Lepus alleni alleni
Harris antelope squirrel
    Ammospermophilus harrisii
Black-tailed jackrabbit
    Lepus californicus eremicus
Rock squirrel
    Spermophilus variegatus grammurus
Desert cottontail
    Sylvilagus audubonii arizonae
Round-tailed ground squirrel
    Spermophilus tereticaudus neglectus

[Back to Index]

Pocket Gophers

Pocket Mice
Botta's pocket gopher, three subspecies
   Thomomys bottae growlerensis, phasma, pusillus
Arizona pocket mouse
    Perognathus amplus taylori
Kangaroo Rats Bailey pocket mouse
    Perognathus baileyi baileyi
Merriam's kangaroo rat
    Dipodomys merriami merriami
Desert pocket mouse
    Perognathus penicillatus pricei
Desert kangaroo rat
    Dipodomys deserti arizonae
Rock pocket mouse
    Perognathus intermedius phasma

[Back to Index]

Mice and Rats
Cactus mouse
    Peromyscus eremicus eremicus
Pinacate cactus mouse
    Peromyscus eremicus papagensis
Canyon mouse
    Peromyscus crinitus disparilis
Southern grasshopper mouse
    Onychomys torridus torridus
White-throated wood rat
    Neotoma albigula mearnsi 
Desert woodrat
    Neotoma lepida auripila

[Back to Index]

Doglike and Foxlike Animals

Raccoons and Relatives
Coyote
    Canis latrans mearnsi
Ringtail
    Bassariscus astutus yumanensis
Kit fox
    Vulpes macrotis macrotis
Gray fox
    Urocyon cinereoargenteus

[Back to Index]
Weasels and Relatives Cats
Badger
    Taxidea taxus berlandieri
Bobcat
    Felis rufus baileyi
Western spotted skunk
    Spilogale gracilis leucoparia
Mountain lion
    Felis concolor

Peccaries

Deer and Relatives
Collared peccary or "javelina"
    Tayassu tajacu
Mule deer
    Odocoileus hemionus crooki

[Back to Index]











Sonoran Pronghorn

Pronghorns
Sonoran pronghorn
    Antilocapra americana sonoriensis

Sheep and Relatives
Desert bighorn
    Ovis canadensis mexicana

[Back to Index]

Unverified Species
Following are animals that have been seen near the refuge and would be expected to be resident or transient, but no verified sightings have been made on the refuge.

Mexican free-tailed bat
    Tadarida brasiliensis mexicana
Underwood's mastiff bat
    Eumops underwoodi
Little pocket mouse
    Perognathus longimembris
White-tailed deer
    Odocoileus virginianus couesi

[Back to Index]

Suggested Reading List

William H. Burt & Richard P. Grossenheider, A Field Guide to the Mammals (Peterson Field Guide Series), Houghton Mifflin Co. 1964.

Donald F. Hoffmeister, Mammals of Arizona, University of Arizona Press, 1986.

James A. MacMahon, Deserts (Audubon Society Nature Guide), Alfred A. Knopf, Inc., 1988.

Gale Monson & Lowell Summer, editors, The Desert Bighorn, University of Arizona Press.

Olaus A. Murie, A Field Guide to Animal Tracks (Peterson Field Guide Series) Houghton Mifflin Co.

USFWS, Endangered and Threatened Species of Arizona, Ecological Services Field Office, Phoenix, AZ., Summer 1991.

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Cabeza Prieta National Wildlife Refuge
1611 North Second Avenue
Ajo, Arizona 85321
Phone: 520/387-6483
Fax: 520/387-5359
r2rw_cp@fws.gov 

 

Last Updated April 15, 2002

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