North Dakota’s 351 white-tailed deer records reach 40 of the state’s counties, but the weight inside that spread follows the water. Cass and Grand Forks counties lead in the Red River Valley, Burleigh and Morton hold the Missouri River country, and Billings County anchors the west around Theodore Roosevelt National Park and the Little Missouri National Grassland.
River woods in a grassland state
In a state built mostly of cropland and open prairie, whitetails hold to cover. River-bottom forest, wooded draws, shelterbelts, and the brushy seams between fields and sloughs give them places to bed, and they feed out from that cover on twigs, buds, and leafy growth along the edges. North Dakota’s patchwork of wheat, sunflower, and hay ground suits a browser with a tree line behind it, and places like Fort Ransom State Park, Turtle River State Park, and the Oahe Wildlife Management Area all sit in exactly that kind of wooded cover.
Fawns in June, deer all winter
Counts climb from April to a June peak, which is fawning time. Whitetails breed in November, and after a gestation of roughly six and a half months does drop their fawns just as spring growth greens up, putting spotted newborns and watchful mothers in view. Records stay strong through midsummer, then settle into a lower but steady rhythm through fall and the long winter, when deer bunch into sheltered coulees and river bottoms and live heavily on woody browse.
Status in North Dakota
NatureServe lists the white-tailed deer as SNR, Unranked, in North Dakota, though the species is native to the state and globally secure at G5. USGS NAS does not flag it as nonindigenous here.
Full species profile
