I have been visiting the Sequoyah National Wildlife Refuge in Oklahoma for over 20 years and I think this is the first time I have been able to observe a River Otter for a long period of time. This Otter was diving a creek area near the road so I was able to sit in my vehicle and watch it while it searched for food. This took place for over an hour.
For most Otters, fish is the staple of their diet. This is often supplemented by frogs, crayfish and crabs. Some otters are expert at opening shellfish, and others will feed on available small mammals or birds.
Otters are very active, chasing prey in the water or searching the beds of rivers, lakes or the seas. Most species live beside water, but river otters usually enter it only to hunt or travel, otherwise spending much of their time on land to avoid their fur becoming waterlogged.