We went on a bear hunt in manitoba and are guide there would fill 55 gallon drums with barleyorwhatevergrains that he could get and then smother it in grease that he get for free from the local resturonts. The bears love it, But he said if you realy want to bring a bear running to slice open a beaver and let it lie. He said they can't rezist a fresh beaver and with 25 years bear hunting expierence i would tend to believe him.