White-tailed deer top Montana’s mammal record list with 2,059 records reaching 44 counties. The map tilts west, since Missoula and Flathead counties alone hold nearly half the total, with Glacier National Park, Kaniksu National Forest, and Lolo National Forest among the strongest named settings.
A deer of the bottoms and thickets
Where mule deer favor open slopes, the whitetail keeps to cover: cottonwood river bottoms, brushy draws, lakeside thickets, and the weedy edges of farm fields. It is a browser, working shrubs, twigs, and forbs within reach of escape cover, and the flashing white flag of its raised tail is usually the last view it offers. Montana’s western valleys, threaded with rivers and lined with dense growth, are classic whitetail country.
Fawns, then the rut
Records build from May through August and crest in July, when does nurse spotted fawns hidden in tall growth and the whole herd feeds heavily through the long evenings. Activity stays high into fall as the November rut puts bucks on the move at all hours, before deepening snow pushes deer onto sheltered winter range.
Status in Montana
NatureServe ranks the white-tailed deer S5, Secure, in Montana, and the species is native to the state. USGS NAS does not list it as nonindigenous here.
Full species profile
