We've always used popcorn and molasses. It does not take long at all to make several dozen 5 gallon pails of popcorn if you have a popcorn machine... and its cheap too. Once the pails are made, they last for weeks. We use propane tanks, with holes about an 3/4 inch wide pierced in them, with a little door for getting the popcorn in. We chain them to trees and cover the popcorn with molasses. After a day or two, every single piece of popcorn is gone, which aint an easy task through such a small hole.
Another way that keeps them busy is to suspend the tank from a high branch, but not far from the trunk. The trick is to get them to climb the tree, swat the tank a few times and them go down and eat what fell out. Keeps em busy for hours, though really big bears dont like climbing all that much.
Far what it's worth, Tim Hortons does indeed throw out several garbage bags of donuts twice a day. A friendly talk with the manager will probably get him to tell his staff to leave the garbage bags outside of the dumpster so that you dont have to jump in to retrieve them. Make sure you pick em up though, and tell him when you've gotten enough for your needs.
Another way that keeps them busy is to suspend the tank from a high branch, but not far from the trunk. The trick is to get them to climb the tree, swat the tank a few times and them go down and eat what fell out. Keeps em busy for hours, though really big bears dont like climbing all that much.
Far what it's worth, Tim Hortons does indeed throw out several garbage bags of donuts twice a day. A friendly talk with the manager will probably get him to tell his staff to leave the garbage bags outside of the dumpster so that you dont have to jump in to retrieve them. Make sure you pick em up though, and tell him when you've gotten enough for your needs.