Look for the droppings on rocks and logs at the waters edge. They also will mow down their favorite grass and rushes and leave pieces floating in the water. River rats are fewer and harder to trap than pond or creek rats partly because of the water fluctuation. A 2 or 3 acre pond full of rats and a few traps makes for a lot of fun.
I wish we had them here. Used to be on the Arkansas river by the jillions. A man could make a living in a month or two catching muskrats with the prices the way they are now. But between Nutria rats and Alligators they have all but disappeared down here on the lower Arkansas river...d2
Around here to d2,no gators but I've caught several Nutria Rats this year,and I heard they don't geehaw with the rats.Richie find the logs with droppings on them and hatchet out a notch in the log where your trap will be about 2 inches under the water,go back and get your rats.