A couple of quick things about bears and bait and calling. First bears love sweets, doughnuts, candy, chocolate, they also love grease. However, they can't live on sweets and grease. They need protein. Yes sweets will attract them but it won't keep them coming. After a while they need something more substantial. If you want to keep them interested in your bait use sweets to attract them then switch to dry dog food. It doesn't have to be expensive dog food, Wal-mart brand for $10.00/50lbs works great. The dog food has all the protein and nutrients they need. As long as they have those needs satisfied they will keep coming.
About calling, I have had really good luck using a cub distress call to call bears. The only thing about it is it is almost impossible to call a bear in cold. Usually you use the call after you have spotted one and you need to call it in that last 50 yards or so for a good shot. They also work well to get the bear to stand up giving you a shot when they are in tall blackberry bushes.
Hope this helps
tony212