Put some fine mud or silt around the entrances of the holes and any game trails. Check frequently for animal tracks. You could have anything from otters to raccoons. You have to verify what you have before you determine how to get rid of it/them.
One things muskrats very rarely do is leave visible holes to thier dens. Most of the entrances are underwater, if not all. They may have a ventilation hole to the den but that is normally very well hidden. Although they will eat a fish here and there, they prefer aquatic vegetation, especially cattails and reeds. Muskrats can be a disaster to your levees, embankments and dam, but not really a big fish eater.
Last edited by The Pond Frog; 03/12/10 06:33 PM.
