Our favorite lure....... Beaver Castor based with a heavy dose of oils and herbs hilghly attractive to predators and beaver alike. 
Used at majority of our predator sets, will create a insane digging response in coyotes.  
 
Oils create response from beavers on Castor mounds even when castor sets are failing.  480 beaver shipped to nafa by us this spring, with the majority being taken with Souther Stihl. 
 
EXTREMLY ATTRACTIVE TO BOBCATS.  If I had to choose only one lure to have in my trapping bag, this would be it.  I do not remember the last time I had two traps at a location and at least one of them did not have Southern Stihl.