National Park Service U.S. Department of the Interior Natural Resource Stewardship and Science Mammals of the Rincon Mountain District, Saguaro National Park Natural Resource Report NPS/SODN/NRR—2011/437 ON THE COVER Jaguar killed in Rincon Mountains in 1902, photographed at saloon in downtown Tucson. Photograph courtesy Arizona Historical Society. Mammals of the Rincon Mountain District, Saguaro National Park Natural Resource Report NPS/SODN/NRR—2011/437 Author Don E. Swann With contributions by Melanie Bucci, Matthew Caron, Matthew Daniels, Ronnie Sidner, Sandy A. Wolf, and Erin R. Zylstra Saguaro National Park 3693 South Old Spanish Trail Tucson, Arizona 85730-5601 Editing and Design Alice Wondrak Biel Sonoran Desert Network 7660 E. Broadway Blvd., Suite 303 Tucson, AZ 85710 August 2011 U.S. Department of the Interior National Park Service Natural Resource Stewardship and Science Fort Collins, Colorado The National Park Service’s Natural Resource Stewardship and Science offi ce, in Fort Collins, Colo- rado, publishes a range of reports that address natural resource topics of interest and applicability to a broad audience in the National Park Service and others in natural resource management, including scientists, conservation and environmental constituencies, and the public. The Natural Resource Report Series is used to disseminate high-priority, current natural resource management information with managerial application. The series targets a general, diverse audience, and may contain NPS policy considerations or address sensitive issues of management applicability. All manuscripts in the series receive the appropriate level of peer review to ensure that the informa- tion is scientifi cally credible, technically accurate, appropriately written for the intended audience, and designed and published in a professional manner. This report received formal peer review by subject- matter experts who were not directly involved in the collection, analysis, or reporting of the data, and whose background and expertise put them on par technically and scientifi cally with the authors of the information. Views, statements, fi ndings, conclusions, recommendations, and data in this report do not necessarily refl ect views and policies of the National Park Service, U.S. Department of the Interior. Mention of trade names or commercial products does not constitute endorsement or recommendation for use by the U.S. Government. This report is available from the Sonoran Desert Network website, http://science.nature.nps.gov/ im/units/sodn/index.cfm, and the Natural Resource Publications Management website, http://www. nature.nps.gov/publications/NRPM. Please cite this publication as: Swann, D. E. 2011. Mammals of the Rincon Mountain District, Saguaro National Park. Natural Resource Report NPS/SODN/NRR—2011/437. National Park Service, Fort Collins, Colorado. NPS 151/109187, August 2011 ii Mammals of the Rincon Mountain District, Saguaro National Park Contents Photos .....................................................................................................................................v Maps .....................................................................................................................................vii Abstract .................................................................................................................................ix Acronyms ...............................................................................................................................xi Acknowledgements ............................................................................................................xiii Introduction ...........................................................................................................................1 Marsupials ..............................................................................................................................2 Virginia Opossum .......................................................................................................................... 2 Insectivores .............................................................................................................................4 Desert Shrew ................................................................................................................................. 4 Bats..........................................................................................................................................6 Mexican Long-Tongued Bat .......................................................................................................... 6 Lesser Long-Nosed Bat .................................................................................................................. 8 Southwestern Myotis .................................................................................................................. 10 California Myotis ......................................................................................................................... 12 Western Small-Footed Myotis ....................................................................................................14 Fringed Myotis ............................................................................................................................. 16 Cave Myotis.................................................................................................................................. 18 Long-Legged Myotis ................................................................................................................... 20 Yuma Myotis ................................................................................................................................ 22 Western Red Bat .......................................................................................................................... 24 Hoary Bat ..................................................................................................................................... 26 Silver-Haired Bat .......................................................................................................................... 28 Western Pipistrelle ...................................................................................................................... 30 Big Brown Bat .............................................................................................................................. 32 Townsend’s Big-Eared Bat ........................................................................................................... 34 Pallid Bat ...................................................................................................................................... 36 Brazilian (Mexican) Free-Tailed Bat ............................................................................................ 38 Pocketed Free-Tailed Bat ............................................................................................................ 40 Rabbits ..................................................................................................................................42 Desert Cottontail ......................................................................................................................... 42 Eastern Cottontail ...................................................................................................................... 44 Antelope Jackrabbit .................................................................................................................... 46 Black-Tailed Jackrabbit................................................................................................................ 48 Rodents .................................................................................................................................50 Cliff Chipmunk ............................................................................................................................. 50 Harris’s Antelope Squirrel ........................................................................................................... 52 Round-Tailed Ground Squirrel .................................................................................................... 54 Rock Squirrel ................................................................................................................................ 56 Abert’s Squirrel ............................................................................................................................ 58 Arizona Gray Squirrel .................................................................................................................. 60 Botta’s Pocket Gopher ................................................................................................................ 62 Arizona Pocket Mouse ................................................................................................................ 64 Bailey’s Pocket Mouse ................................................................................................................. 66 Contents iii Rock Pocket Mouse ..................................................................................................................... 68 Sonoran Desert Pocket Mouse ................................................................................................... 70 Merriam’s Kangaroo Rat ............................................................................................................. 72 Banner-Tailed Kangaroo