Ok, we have otters again. We were able to get rid of 3 of them last winter and no signs since. A local trapper caught one about 2 weeks ago and had no more signs until today. Studying the tracks on the ice and snow it appears like at least a pair. Our pond is close to a small river and I know that is how they find us. I would like to find a more permanent solution. Has anyone tried STOP POND OTTERS? It is a product that emits sound into the water that will keep them from entering. It is not super costly and would be cheap if it would work. Trapping is only a temporary solution.