Troy L. Best
Professor and Curator of Mammals
Vertebrate Ecology, Systematics, Mammalogy,
Ornithology, Herpetology, Endangered Species
OFFICE: 350 Funchess Hall
PHONE: 334/844‑9260
FAX: 334/844‑9234
E‑MAIL: besttro@auburn.edu


Banner-tailed kangaroo rat.
Education:
Ph.D., Zoology, University of Oklahoma, Norman, OK, 1976.
M.S., Zoology, University of Oklahoma, Norman, OK, 1971.
B.S., Biology, Anthropology, and Secondary Education, Eastern New Mexico University, Portales, NM, 1967.
Lesser
Prairie-chicken on a lek in New Mexico.
Honors/Awards:
Alumni Professor, Auburn University, 1999-2004.
Outstanding Professor, Auburn University Panhellenic Council, 1996. One of 18 awardees selected by this organization of nationally chartered sororities to recognize a "determination to foster knowledge in the minds of students."
Donald W. Tinkle Research Excellence Award, The Southwestern Association of Naturalists, 1995. This award is presented to "a scientist who has made significant contributions to the understanding of the biota of the Southwest and Latin America through scientific publications."
Faculty Advisor, Auburn University Chapter of Beta Beta Beta National Biological Honor Society, 1991 to present.

Bats exiting a cave in northern Alabama.
Research/Interests:
The primary focus of my research is on the ecology and systematics of vertebrates. I have conducted extensive field work in the southwestern United States and Mexico, primarily related to ecology and systematic studies of bats, heteromyid rodents, and other desert species. For the past 15 years, my research also has included studies of the ecology of birds and reptiles in New Mexico, and the ecology of bats in Alabama, Mississippi, Texas, New Mexico, and Mexico.

Identifying a bat in Africa.

Research camp in Argentina.

Looking for migratory bats in Mexican caves.

Plotting collecting localities in Alabama

Thunderstorm in Big Bend National Park, Texas.

Grazing in Lake Nakuru National Park, Kenya.
In collaboration with M. J. Harvey (Tennessee Technological University) and J. S. Altenbach (University of New Mexico), we produced three full‑color, 24 by 36‑inch posters on bats for distribution to the general public by private, state, and federal organizations throughout the United States (Bats of Alabama, Bats of the Eastern United States, and Bats of the Western United States). These posters contain photographs of 45 species of bats that occur in the United States (photos are by J. S. Altenbach) and the back side of each poster has information including distribution, ecology, reproductive biology, and behavior of each species shown on the front. About 200,000 copies are being distributed by sponsoring organizations.
Measurements of
a puma (Gay and Best, 1996).
Completed Theses/Dissertations:
Since 1993, 21 students have completed graduate degrees under my direction (2 Ph.D, 13 M.S., 6 non‑thesis), and I have served as a committee member for more than 30 other graduate students. In addition to completing the Ph.D. and M.S. degree requirements with course work and thesis, all of these students have presented results of their research at international scientific meetings and several have manuscripts derived from their thesis research that are now published or “in press.”
Gay, M. D. 2006. Effect of age of forest on mammals in the upper Mobile-Tensaw River Delta, Alabama. M.S. thesis, Auburn University, Alabama, 38 pp.
Redinger, P. 2006. Variation in populational size and composition within summer colonies of endangered gray bats (Myotis grisescens). M.S. thesis, Auburn University, Alabama, 102 pp.

Bats in Arizona.

Reptiles in New Mexico.

Birds in New Mexico.

Quesadillas in Mexico.
Moosman, P. R., Jr. 2005. Roosting behavior and habitat dynamics of male Indiana bats (Myotis sodalis) following a large-scale natural disturbance. Ph.D. dissertation, Auburn University, Alabama, 82 pp.
Hunt, J. L. 2004. Investigation into the decline of populations of the lesser prairie chicken (Tympanuchus pallidicinctus Ridgway) in southeastern New Mexico. Ph.D. dissertation, Auburn University, Alabama, 294 pp.
Armbruster, H. A. 2003. Dietary variation in Rafinesque’s big-eared bat, Corynorhinus rafinesquii, in coastal South Carolina. M.S. thesis, Auburn University, Alabama, 65 pp.
McWilliams, L. A. 2002. Variation in diet of the Mexican free-tailed bat (Tadarida brasiliensis mexicana) at Carlsbad Cavern, New Mexico. M.S. thesis, Auburn University, Alabama, 141 pp.
Sunrise at Carlsbad Cavern, New Mexico. 
Hunt, J. L. 1999. Dietary overlap and potential competition among scaled quail, mourning doves, and northern bobwhites in southeastern New Mexico. M.S. thesis, Auburn University, Alabama, 72 pp.
Mulheisen, M. P. 1999. Activity patterns of the Mexican free-tailed bat (Tadarida brasiliensis mexicana). M.S. thesis, Auburn University, Alabama, 135 pp.
Henry, T. H. 1998. Variation in use of habitats by the gray bat (Myotis grisescens) in northern Alabama. M.S. thesis, Auburn University, Alabama, 286 pp.
Milam, B. A. 1996. Daily and seasonal ranges of temperatures of a roost used by the Brazilian free‑tailed bat (Tadarida brasiliensis) and the big brown bat (Eptesicus fuscus) in Alabama. M.S. thesis, Auburn University, Alabama, 76 pp.
Goebel, A. B. 1996. Temporal variation in movement patterns of adult female Myotis grisescens (Chiroptera: Vespertilionidae). M.S. thesis, Auburn University, Alabama, 113 pp.
Setting the harp trap in northern Alabama. 
Kiser, W. M. 1996. Conservation of LeConte's free‑tailed bat (Tadarida brasiliensis cynocephala): environmental parameters of a natural and an artificial roost. M.S. thesis, Auburn University, Alabama, 245 pp.
Gay, S. W. 1994. Morphologic variation in pumas (Puma concolor) and its relationship to selected climatic and biotic variables. M.S. thesis, Auburn University, Alabama, 184 pp.
Adjusting
the recording equipment.
Capturing infrared images of bats.

Visiting research collections.
Asking lots of questions.
Thomas, D. P. 1994. A radiotelemetric assessment of the foraging ecology of the gray bat (Myotis grisescens) at Guntersville Reservoir, Alabama. M.S. thesis, Auburn University, Alabama, 78 pp.
Hilton, C. D. 1994. Gastrointestinal helminth parasites of bats (Chiroptera: Molossidae, Vespertilionidae) in Alabama. M.S. thesis, Auburn University, Alabama, 54 pp.
Catching fruit bats in South America.

Theses/Dissertations in Progress:
S. A. Gardner, M.S. program, Ecology of bats in Alabama
L. M. Gilley, Ph.D. program, Behavior of southern flying squirrels
S. J. Hirt, M.S. program, Determining migration patterns in bats using stable isotopes
C. H. Kilgore, M.S. program, Ecological associations of bats in southern Alabama
L. A. McWilliams, Ph.D. program, Behavior of lesser prairie-chickens in New Mexico
J. A. White, Ph.D. program, Ecology of Ord’s kangaroo rat in Nebraska
Listening for bats in the Mobile-Tensaw Delta, Alabama. 
Checking
field photos in New Mexico.
Setting traps in southern Alabama. 
Catching bats
in Mexico.
Nope, not a bat! 
Courses Taught:
BIOL-2500 Human Anatomy and Physiology I (4 hours, summer)
BIOL-2510 Human Anatomy and Physiology II (4 hours, fall)
BIOL-5760/6760 Mammalogy (4 hours, fall)
BIOL-5160/6160 Field Biology and Ecology (4 hours, summer)
BIOL-7060 Advanced Mammalogy (4 hours, alternating fall)
BIOL-7980 Ecology and Behavior of Bats (3 hours, irregular)
BIOL-7980 Desert Mammals (3 hours, summer)
BIOL-4980 Undergraduate Research (2-4 hours, fall, spring, summer)
Catching up
on field notes, New Mexico.
Taking a break from field work in Mexico. 
Setting up the
“mega-net” in southern Alabama.
Finding a campsite in Zacatecas, Mexico. 
Kangaroo rat
on Padre Island, Texas.
Searching for parasites, Arizona. 
Stalking a
hoary marmot in Washington.
Identifying a cowbird in Argentina. 
Service to Professional Organizations:
Editor, The Southwestern Naturalist (an international peer‑reviewed scientific publication of The Southwestern Association of Naturalists), 2007 to present.
Alabama Coordinator, Southeastern Bat Diversity Network, 1999 to present.
President, Southeastern Bat Diversity Network, 2003-2007.
Associate Editor, Journal of Mammalogy (an international peer‑reviewed scientific publication of the American Society of Mammalogists), 1997‑2000.
Board of Governors, The Southwestern Association of Naturalists, 1979‑1983, 1984‑1988, 1988‑1991, 1991‑1995, 1995‑1997, 1997 to present.
Managing Editor, Journal of Mammalogy, 1993‑1997.
Capturing cotton rats in Mexico.
Editor, Journal of Mammalogy, 1990‑1993.
Editor, Mammalian Species, 1987‑1991, 1992‑1993.
Index Editor, The Southwestern Naturalist, 1988 to present.
Index Editor, Systematic Zoology/Systematic Biology, 1972‑1998.
Index to
first 36 years of The Southwestern Naturalist.
Publications (access PDF following most citations):
Akins, J. B., M. L. Kennedy, G. D. Schnell, C. Sánchez-Hernández, M. de Lourdes Romero-Almaraz, M. C. Wooten, and T. L. Best. In press. Flight speeds of three species of Neotropical bats (Glossophaga soricina, Natalus stramineus, and Carollia subrufa). Acta Chiropterologica.
Schnell, G. D., M. L. Kennedy, C. Sánchez-Hernández, M. de L. Romero-Almaraz, B. D. N. Estevez, J. A. Guerrero, T. L. Best, M. C. Wooten, and R. D. Owen. In press. A species of increased concern in a biodiversity hotspot: conservation status, demographic features, and habitat preference of the endemic marsh deer mouse (Peromyscus perfulvus). The Southwestern Naturalist.
Hester, L. C., and T. L. Best. 2007. Rabies in bats from Alabama. Journal of Wildlife Diseases, 42:291-299. PDF
White, J. A., P. R. Moosman, Jr., C. H. Kilgore, and T. L. Best. 2006. First record of the eastern pipistrelle (Pipistrellus subflavus) from southern New Mexico. The Southwestern Naturalist, 51:420-422. PDF

Baiting camera stations in tree canopy.
López‑González, C., and T. L. Best. 2006. Current status of wintering sites of Mexican free‑tailed bats Tadarida brasiliensis mexicana (Chiroptera: Molossidae) from Carlsbad Cavern, New Mexico. Vertebrata Mexicana, 18:13-22. PDF
Mantooth, S. L., and T. L. Best. 2005. Chaetodipus eremicus. Mammalian Species, 768:1-3. PDF
Mantooth, S. L., and T. L. Best. 2005. Chaetodipus penicillatus. Mammalian Species, 767:1-7. PDF
Hunt, J. L., J. E. Morris, and T. L. Best. 2004. Nyctomys sumichrasti. Mammalian Species, 754:1‑6. PDF
Best, T. L. 2004. Little brown myotis Myotis lucifugus (LeConte). P. 199, in Alabama wildlife: conservation and management recommendations for imperiled wildlife (R. E. Mirarchi, M. A. Bailey, J. T. Garner, T. M. Haggerty, T. L. Best, M. F. Mettee, and P. O’Neil, eds.). The University of Alabama Press, Tuscaloosa, 4:1-221. PDF
Volcán de Fuego, Colima, Mexico. 
Best, T. L. 2004. Rafinesque’s big-eared bat Corynorhinus rafinesquii (Lesson). P. 195, in Alabama wildlife: conservation and management recommendations for imperiled wildlife (R. E. Mirarchi, M. A. Bailey, J. T. Garner, T. M. Haggerty, T. L. Best, M. F. Mettee, and P. O’Neil, eds.). The University of Alabama Press, Tuscaloosa, 4:1-221. PDF
Best, T. L. 2004. Gray myotis Myotis grisescens Howell. P. 194, in Alabama wildlife: conservation and management recommendations for imperiled wildlife (R. E. Mirarchi, M. A. Bailey, J. T. Garner, T. M. Haggerty, T. L. Best, M. F. Mettee, and P. O’Neil, eds.). The University of Alabama Press, Tuscaloosa, 4:1-221. PDF
Alabama
Wildlife was published in 2004.
Best, T. L. 2004. Bison Bison bison (Linnaeus). P. 192, in Alabama wildlife: conservation and management recommendations for imperiled wildlife (R. E. Mirarchi, M. A. Bailey, J. T. Garner, T. M. Haggerty, T. L. Best, M. F. Mettee, and P. O’Neil, eds.). The University of Alabama Press, Tuscaloosa, 4:1-221. PDF
Best, T. L. 2004. Elk Cervus elaphus Linnaeus. P. 192, in Alabama wildlife: conservation and management recommendations for imperiled wildlife (R. E. Mirarchi, M. A. Bailey, J. T. Garner, T. M. Haggerty, T. L. Best, M. F. Mettee, and P. O’Neil, eds.). The University of Alabama Press, Tuscaloosa, 4:1-221. PDF
Best, T. L. 2004. Puma Puma concolor (Linnaeus). P. 191, in Alabama wildlife: conservation and management recommendations for imperiled wildlife (R. E. Mirarchi, M. A. Bailey, J. T. Garner, T. M. Haggerty, T. L. Best, M. F. Mettee, and P. O’Neil, eds.). The University of Alabama Press, Tuscaloosa, 4:1-221. PDF
Best, T. L. 2004. Red wolf Canis rufus Audubon and Bachman. P. 191, in Alabama wildlife: conservation and management recommendations for imperiled wildlife (R. E. Mirarchi, M. A. Bailey, J. T. Garner, T. M. Haggerty, T. L. Best, M. F. Mettee, and P. O’Neil, eds.). The University of Alabama Press, Tuscaloosa, 4:1-221. PDF
Best, T. L. 2004. Little brown myotis Myotis lucifugus (LeConte). Pp. 193-194, in Alabama wildlife: imperiled amphibians, reptiles, birds, and mammals (R. E. Mirarchi, M. A. Bailey, T. M. Haggerty, and T. L. Best, eds.). The University of Alabama Press, Tuscaloosa, 3:1-225. PDF
Bat crew in southern Alabama. 
Best, T. L. 2004. Rafinesque’s big-eared bat Corynorhinus rafinesquii (Lesson). Pp. 182-183, in Alabama wildlife: imperiled amphibians, reptiles, birds, and mammals (R. E. Mirarchi, M. A. Bailey, T. M. Haggerty, and T. L. Best, eds.). The University of Alabama Press, Tuscaloosa, 3:1-225. PDF
Best, T. L. 2004. Gray myotis Myotis grisescens Howell. Pp. 179-180, in Alabama wildlife: imperiled amphibians, reptiles, birds, and mammals (R. E. Mirarchi, M. A. Bailey, T. M. Haggerty, and T. L. Best, eds.). The University of Alabama Press, Tuscaloosa, 3:1-225. PDF
Best, T. L. 2004. Bison Bison bison (Linnaeus). Pp. 176-177, in Alabama wildlife: imperiled amphibians, reptiles, birds, and mammals (R. E. Mirarchi, M. A. Bailey, T. M. Haggerty, and T. L. Best, eds.). The University of Alabama Press, Tuscaloosa, 3:1-225. PDF
How to catch a mammal.
Best, T. L. 2004. Elk Cervus elaphus Linnaeus. Pp. 174-175, in Alabama wildlife: imperiled amphibians, reptiles, birds, and mammals (R. E. Mirarchi, M. A. Bailey, T. M. Haggerty, and T. L. Best, eds.). The University of Alabama Press, Tuscaloosa, 3:1-225. PDF
Best, T. L. 2004. Puma Puma concolor (Linnaeus). Pp. 172-174, in Alabama wildlife: imperiled amphibians, reptiles, birds, and mammals (R. E. Mirarchi, M. A. Bailey, T. M. Haggerty, and T. L. Best, eds.). The University of Alabama Press, Tuscaloosa, 3:1-225. PDF
Best, T. L. 2004. Red wolf Canis rufus Audubon and Bachman. Pp. 171-172, in Alabama wildlife: imperiled amphibians, reptiles, birds, and mammals (R. E. Mirarchi, M. A. Bailey, T. M. Haggerty, and T. L. Best, eds.). The University of Alabama Press, Tuscaloosa, 3:1-225. PDF
Best, T. L. 2004. Mammals. Pp. 167-169, in Alabama wildlife: imperiled amphibians, reptiles, birds, and mammals (R. E. Mirarchi, M. A. Bailey, T. M. Haggerty, and T. L. Best, eds.). The University of Alabama Press, Tuscaloosa, 3:1-225. PDF
Supplies for
class population grid.
Best, T. L. (compiler). 2004. Mammals. Pp. 185-204, in Alabama wildlife: a checklist of vertebrates and selected invertebrates: aquatic mollusks, fishes, amphibians, reptiles, birds, and mammals (R. E. Mirarchi, ed.). The University of Alabama Press, Tuscaloosa, 1:1-209. PDF
Best, T. L., and K. N. Geluso. 2003. Summer foraging range of Mexican free‑tailed bats (Tadarida brasiliensis mexicana) from Carlsbad Cavern, New Mexico. The Southwestern Naturalist, 48:590-596. PDF

Bats leaving the cave. Where do they go for dinner?
Hunt, J. L., L. A. McWilliams, T. L. Best, and K. G. Smith. 2003. Eumops bonariensis. Mammalian Species, 733:1-5. PDF
Best, T. L., K. Geluso, J. L. Hunt, and L. A. McWilliams. 2003. The lesser prairie chicken (Tympanuchus pallidicinctus) in southeastern New Mexico: a population survey. The Texas Journal of Science, 55:225-234. PDF
Best, T. L., J. L. Hunt, L. A. McWilliams, and K. G. Smith. 2002. Eumops auripendulus. Mammalian Species, 708:1-5. PDF
Lekking Lesser Prairie-chickens.

McWilliams, L. A., T. L. Best, J. L. Hunt, and K. G. Smith. 2002. Eumops dabbenei. Mammalian Species, 707:1-3. PDF
Sánchez-Hernández, C., M. de Lourdes Romero-Almaraz, G. D. Schnell, M. L. Kennedy, T. L. Best, R. D. Owen, and C. López-González. 2002. Bats of Colima, Mexico: new records, geographic distribution, and reproductive condition. Occasional Papers, Sam Nobel Oklahoma Museum of Natural History, 12:1-23. PDF

Volcán de Fuego, Jalisco, Mexico.
Jennings, J. B., T. L. Best, S. E. Burnett, and J. C. Rainey. 2002. Molossus sinaloae. Mammalian Species, 691:1-5. PDF
Hunt, J. L., and T. L. Best. 2001. Foods of scaled quail (Callipepla squamata) in southeastern New Mexico. The Texas Journal of Science, 53:147-156. PDF
Best, T. L., J. L. Hunt, L. A. McWilliams, and K. G. Smith. 2001. Eumops hansae. Mammalian Species, 687:1-3. PDF
Hunt, J. L., and T. L. Best. 2001. Foods of northern bobwhites (Colinus virginianus) in southeastern New Mexico. The Southwestern Naturalist, 46:239-243. PDF
Burnett, S. E., J. B. Jennings, J. C. Rainey, and T. L. Best. 2001. Molossus bondae. Mammalian Species, 668:1-3. PDF

Examining specimens of Asian mammals.
Best, T. L., J. L. Hunt, L. A. McWilliams, and K. G. Smith. 2001. Eumops maurus. Mammalian Species, 667:1-3. PDF
Thomas, D. P., and T. L. Best. 2000. Radiotelemetric assessment of movement patterns of the gray bat (Myotis grisescens) at Guntersville Reservoir, Alabama. Occasional Papers of the North Carolina Museum of Natural Sciences and the North Carolina Biological Survey, 12:27-39. PDF
Bat with a radiotransmitter, northern Alabama.
Best, T. L., and K. G. Caesar. 2000. Distribution and abundance of bats in caves and mines of northeastern Mississippi. Occasional Papers of the North Carolina Museum of Natural Sciences and the North Carolina Biological Survey, 12:45-49. PDF
Henry, T. H., T. L. Best, and C. D. Hilton. 2000. Body size, reproductive biology, and sex ratio of a year‑round colony of Eptesicus fuscus fuscus and Tadarida brasiliensis cynocephala in eastern Alabama. Occasional Papers of the North Carolina Museum of Natural Sciences and the North Carolina Biological Survey, 12:50-56. PDF
Hilton, C. D., and T. L. Best. 2000. Gastrointestinal helminth parasites of bats in Alabama. Occasional Papers of the North Carolina Museum of Natural Sciences and the North Carolina Biological Survey, 12:57-66. PDF

Checking the dermestid colony.
Jennings, J. B., T. L. Best, J. C. Rainey, and S. E. Burnett. 2000. Molossus pretiosus. Mammalian Species, 635:1-3. PDF
Best, T. L. 1999. Alaskan hare / Lepus othus. Pp. 702‑704, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. White‑sided jackrabbit / Lepus callotis. Pp. 701‑702, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Arctic hare / Lepus arcticus. Pp. 697‑698, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Black-tailed
jackrabbit.
Best, T. L. 1999. Antelope jackrabbit / Lepus alleni. Pp. 693‑695, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Santa Cruz kangaroo rat / Dipodomys venustus. Pp. 545‑546, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Stephens' kangaroo rat / Dipodomys stephensi. Pp. 544‑545, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Banner‑tailed kangaroo rat / Dipodomys spectabilis. Pp. 542‑544, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Dulzura kangaroo rat / Dipodomys simulans. Pp. 541‑542, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Panamint kangaroo rat / Dipodomys panamintinus. Pp. 539‑540, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Ord kangaroo rat / Dipodomys ordii. Pp. 537‑539, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
San Joaquin Valley kangaroo rat, California. 
Best, T. L. 1999. Fresno kangaroo rat / Dipodomys nitratoides. Pp. 535‑537, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Elephant‑eared kangaroo rat / Dipodomys elephantinus. Pp. 528‑529, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Desert kangaroo rat / Dipodomys deserti. Pp. 525‑527, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Agile kangaroo rat / Dipodomys agilis. Pp. 521‑523, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. San Joaquin pocket mouse / Perognathus inornatus. Pp. 501‑502, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Mexican fox squirrel / Sciurus nayaritensis. Pp. 455‑456, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF

Sign of protection for pumas in Mexico.
Best, T. L. 1999. Nelson's antelope squirrel / Ammospermophilus nelsoni. Pp. 407‑408, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Texas antelope squirrel / Ammospermophilus interpres. Pp. 404‑405, in The Smithsonian book of North American mammals (D. E. Wilson and S. Ruff, eds.). Smithsonian Institution Press, Washington, D.C., 750 pp. PDF
Best, T. L. 1999. Harris' antelope squirrel