Jim has written and contributed to an extensive literature of books, journal and magazine articles, videos, and computer programs. View a complete bibliography by clicking here.
Books may be ordered from A Naturalist's World by clicking here.
Clicking on the picon of a book will download a high resolution picture of the cover.
Clicking on the picon of an article will download a PDF of the article.
If a higher resolution picture is needed, please contact us.
Scats and Tracks is a regional field guide series for most of North America.
Each book is designed to be small enough to carry in the field.
There are 70 species of amphibians, reptiles, birds, and mammals in each edition.
The North America edition summarizes information from all the regional editions.
Special Books: Winter Ecology and Mountain Lion / Human Encounters
Winter: An Ecological Handbook. 1989.
The Beast in the Garden. By David Baron. 2004.
David details the increasing population of mountain lion around Boulder, Colorado and the encounters with people resulting eventually in the death of a jogger. Details Jim's involvement in the whole process.
Bare Feet, Wet Socks: writing about winter. 2003.Zwinger, A. and J. Halfpenny (eds.). Caldera Publishing, Pocatello, ID.
Halfpenny, J., Murphy, K., and D. Reinhart. 1999.
Lynx: their ecology and biology and how winter
recreation effects them. Pp. 49-64 in Olliff, T., Legg, K., and B. Kaeding, editors. . Effects of winter recreation on
wildlife of the Greater Yellowstone Area: a literature review and assessment.
Rpt Greater Yellowstone Coordinating Committee. YNP, WY.
Murphy, K.M., Potter, T.M., Halfpenny, J.C. Gunther, K.A.
Jones, M.T., A. Lundberg, P.A., and N.D. Berg. 2006.
Distribution of Canada Lynx in Yellowstone National Park. Northwest Science 80(3):199-206.
Yes, folks this is really a lynx article not bears.
Halfpenny, J. 2001. The Cat You Never See. BEARS and Other Top Predators: 2(2)12-13.
Halfpenny, J.C., Bissell, S.J. and D.M. Nead. 1979. Status of the Lynx (Felis lynx, Felidae) in Colorado with comments on its distribution in western United States. Unpublished Manuscript.
Halfpenny, J. 2005. Local economic inputs from wolf restoration. Letter to Governor Brian Schweitzer,
Senator Max Baucus,
Senator Conrad Burns, and
Representative Denny Rehberg.
Halfpenny, J. Wolves in Yellowstone: Records since 1967. Pp 111-118 in Greater Yellowstone Predators: Ecology and Conservation in a Changing Landscape. Proceedings of the Third Biennial Conference ofn the Greater Yellowstone Ecosystem, Yellowstone National Park, Sep. 24-27, 1995. Northern Rockies Conservation CooperativeJackson, WY.