Burning baits is a great way to get black bears to your bait station. The most common is bacon grease, however there are others that I like even better. Some of my favorites are Tropical Punch Kool-Aid and Cherry Jello. Mix them with water so you have a fairly thick mixture but not to the point they are gloppy. Bring them to a rolling boil and let them go. When the water has boiled out they will start to smoke, the combination of burned fruit smell and sugar will penetrate the thickest cover and hang there for a long time.