Problems associated with nuisance bear and wildlife feeders are one of the most common complaints we get. Unfortunately, there is only one surefire solution to nuisance bears destroying wildlife feeders, and that is to remove them indefinitely. Depending on where the feeder is located, steps can be taken to minimize damage, but few if any will completely solve the problem.
If bear sightings in your area are very rare and the bear is just passing through, leaving the feeder off until the bear has moved on may resolve the issue. In areas where bear sightings are more frequent, as soon as the feeder is refilled, the bear (or another bear) will return.
Feeders in the Field (Away from Cabins or Campsites)
Some trial-and-error tests have been done by private landowners to try to minimize damage to feeders from bears. Elevating the feeder high beyond what any bear could reach, with heavy, smooth, metal legs that are spaced very far apart to give the feeder a wide enough stance that it cannot be overturned, seems to be the most successful measure that can be taken. Also, regular application of a slick substance such as heavy axle grease may aid in keeping the bear from climbing the legs to reach the feeder.
Feeders Around Cabins, Lake Houses, or Campsites (Anywhere People Stay)
Feeders must be removed from the area completely. Wildlife feeders in the field can be fortified to be somewhat bear resistant, but the feeder will continue to do its job of dispensing feed, where the bear still has access to it. This gives the bear a reason to come to your cabin or campsite on a regular basis, which has the same effects as intentionally feeding bears and habituating them to humans. Not only does this put you and anyone else in the area in potential danger, it also increases the likelihood of property damage, including the bear tearing into your cabin or vehicles. The take-away message is that bears, wildlife feeders, and hunting camps/lake houses do not mix.