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Montana Range
Observations in Montana: 404
Montana CountiesBeaverhead, Big Horn, Blaine, Broadwater, Carbon, Cascade, Chouteau, Deer Lodge, Fergus, Flathead, Gallatin, Glacier, Golden Valley, Granite, Hill, Jefferson, Judith Basin, Lake, Lewis and Clark, Liberty, Lincoln, Madison, Meagher, Mineral, Missoula, Park, Petroleum, Phillips, Powell, Ravalli, Rosebud, Sanders, Sheridan, Silver Bow, Sweet Grass, Teton, Valley, Wheatland
Non-migratory.
Usually tall grass along streams, with or without a brush or tree canopy. Also dry grasslands in N. Central MT. Mesic forests with sparse understory herbage in W. MT. From valley floors to timberline & alpine wet sedge meadows (Hoffmann and Pattie 1968).
Seeds are important prehibernation food. Accumulates fat reserves of up to 2/3 body weight. Does not chache food in or near winter nest. (Jones et al. 1983).
Nests are in mounds or banks elevated above surrounding ground (well-drained). Nests usually 2 feet underground, shredded vegetation insulative core. Single burrow 3-4 feet long. Entrance plugged (Jones et al. 1983).
Young continue to nurse after they have begun eating solid food.