Louisiana’s river otter records read like a map of the state’s water. The 283 records lean toward the coast, with St. Tammany and Cameron parishes in front and places like Cameron Prairie National Wildlife Refuge, Sabine National Wildlife Refuge, and Grand Isle anchoring the marsh country, while Sherburne Wildlife Management Area and the Atchafalaya basin carry them inland.
A swimmer built for bayou country
Few states offer an otter more of what it needs. A river otter is a streamlined, web-footed hunter of fish, crayfish, and frogs, able to close its ears and nose underwater and stay down long enough to work a channel bottom. Louisiana’s braided bayous, swamps, sloughs, and coastal marsh give it hunting water from one border of the state to the other.
Read the banks, then watch the water
Otters are year-round residents that neither hibernate nor migrate, and Louisiana sightings run in every month, standing out in February and November. They often travel as family groups and advertise their routes with worn mud slides and scat-dusted logs on quiet banks, which are usually the surest sign that an otter is working a stretch of water.
Status in Louisiana
NatureServe ranks the river otter S4, Apparently Secure, in Louisiana, and the species is native to the state. USGS NAS does not list it as nonindigenous here.
