Hoffman, R.S.; Pattie, D.L. (1968). A Guide to Montana Mammals. University of Montana Press.
"Northern Rockies Natural History Guide-Mammals". University of Montana’s Division of Biological Sciences. Archived from the original on 20 June 2010. Retrieved 23 November 2010.
Picton, Harold D.; Lonner, Terry N. (2008). Montana's Wildlife Legacy-Decimation to Restoration. Bozeman, MT: Media Works Publishing. ISBN 978-0-615-18849-2.
Notes
^"Montana Field Guide". Montana Department of Fish, Wildlife and Parks. Retrieved 21 November 2010.
^Species of concern are native taxa that are at-risk due to declining population trends, threats to their habitats, restricted distribution, and/or other factors. Designation as a Montana Species of Concern or Potential Species of Concern is based on the Montana Status Rank, and is not a statutory or regulatory classification. Rather, these designations provide information that helps resource managers make proactive decisions regarding species conservation and data collection priorities."Species Status Codes". Retrieved 20 November 2010.
^Hoffman, R.S.; Pattie, D.L. (1968). A Guide to Montana Mammals. University of Montana Press.
^"Montana Field Guide-Virginia Opossum". Montana Department of Fish, Wildlife and Parks. Retrieved 22 November 2010.
^"Two rarely seen woodland caribou spotted in Montana | the Spokesman-Review".
^"Montana Field Guide-Bats". Montana Department of Fish, Wildlife and Parks. Retrieved 22 November 2010.
^"Montana Field Guide-Beaver". Montana Department of Fish, Wildlife and Parks. Retrieved 22 November 2010.
^"Montana Field Guide-Squirrels". Montana Department of Fish, Wildlife and Park. Retrieved 22 November 2010.
^"Montana Field Guide". Montana Department of Fish, Wildlife and Parks. Retrieved 22 November 2010.
^"Montana Field Guide-Mice". Montana Department of Fish, Wildlife and Parks. Retrieved 23 November 2010.
^"Montana Field Guide-Nutria". Montana Department of Fish, Wildlife and Parks. Retrieved 22 November 2010.
^"Montana Field Guide-Porcupine". Montana Department of Fish, Wildlife and Parks. Retrieved 22 November 2010.