Table 1.

Prey species potentially present in the Salish Range and Tally Lake Ranger District in winter, based upon Foresman (2001)

Prey	Common name	Average body mass (kg)
Cervidae		60.0[Link]
Odocoileus hemionus	Mule deer
Odocoileus virginianus	Whitetail deer
Leporidae
Lepus americanus	Snowshoe hare	1.4
Sciuridae
Tamiasciurus hudsonicus	American red squirrel	0.195
Tetraoninae		0.539
Bonasa umbellus	Ruffed grouse
Falcipennis canadensis	Spruce grouse
Cricetidae		0.038[Link]
Arvicolinae[Link], [Link]
Microtus longicaudus	Long‐tailed vole
Microtus montanus	Montane vole
Microtus pennsylvanicus	Meadow vole
Microtus richardsoni	Water vole
Myodes gapperi	Southern red‐backed vole
Ondatra zibethicus	Muskrat	1.136
Phenacomys intermedius	Heather vole
Synaptomys borealis	Northern bog lemming
Neotominae[Link]
Neotoma cinerea	Bushy‐tailed woodrat	0.336
Onychomys leucogaster	Northern grasshopper mouse
Peromyscus leucopus	White‐footed mouse
Peromyscus maniculatus	Deer mouse
Reithrodontomys megalotis	Western harvest mouse

We used median mass for deer to account for differences between sex and age classes; adult deer have higher average biomass than shown here.

This average mass was used for all Cricetidae, except muskrats and woodrats.

Myodes gapperi and Microtus spp. are most common on the study site. Ondatra zibethicus are also common in the area, and were easy to identify in remains compared to the smaller arvicolids.

Neotoma cinerea and Peromyscus maniculatus were most common on the study area and were easy to distinguish from one another in remains.