Missouri’s occurrence databases hold 129 American mink records, most of them iNaturalist photos. Reports run thinner than a shoreline predator’s real range would suggest, since a mink spends most of its life tucked along a bank rather than out in the open.
Marshes in the northwest, spring branches in the south
The densest reporting sits at Loess Bluffs National Wildlife Refuge, where the Missouri River’s bottomland marshes and oxbow wetlands hold the muskrat burrows and brush piles a mink dens in. Mark Twain National Forest and the Ozark National Scenic Riverways add a second cluster from the Ozark Plateau’s spring-fed streams, cold, clear water running past rocky banks that give a mink crayfish and fish to hunt through winter. Between the two regions, Missouri’s rivers cover most of what a mink needs.
A hunter that works water and bank alike
A mink takes fish, crayfish, and frogs in the water and switches to muskrats, voles, and ground-nesting birds on land, shifting the balance as the seasons change. Records here run through every month with bumps in March and again in June and July, tracking a mating season that starts in late winter and a summer stretch when kits are learning to hunt along the same bank their mother patrols.
Status in Missouri
NatureServe ranks the American mink S4, apparently secure. USGS NAS lists no nonindigenous record for the state, and Missouri’s own data treats the species as native throughout its mapped range. It holds on wherever a stretch of shoreline still has enough structure and small prey to support a predator small enough to vanish into a muskrat burrow.
Full species profile
