A range extension of the pygmy rabbit, Brachylagus idahoensis, into the Colorado River basin and a hypothesis as to its route of emigration.
Pritchett, C. L.; Nilsen, J. A.; Coffeen, M. P.; and Smith, H. D.
"Pygmy rabbits in the Colorado River drainage,"
Great Basin Naturalist: Vol. 47
, Article 7.
Available at: http://scholarsarchive.byu.edu/gbn/vol47/iss2/7