What does it mean? What causes a bull to beat the snot out of a peaceful chunk of alder trees? OK, let's put this in a hunting scenario. As you move across a ridge top and are getting ready to move down into the next draw or basin early one fine Elktember morning, you hear a bull violating a small group of alder. Furthermore, you physically see the tops of the alder moving back and forth down the draw in the direction you heard the commotion. What's going on here....why do you think the bull is assaulting the alder, and, what would be your move to try and bring this bull home for dinner. What are the unknowns when you hear/see this phenomenon that may affect your next move and the hunt at hand?