Beaver castor is the ultimate attractor for a wide variety of furbearers, and makes a dynamite beaver lure. The base and primary calling agent in this lure is ground beaver castor. I've incorporated two key ingredients to amp up the castor, increasing scent dispersal and calling power. Another ingredient adds durability to help the lure hold up against the weather, and finally, as the name entails, Birch Oil provides a nice twist and adds a food element for beavers.
Try this one for lynx and bobcat too!