Not sure if these are Bulls or Bullies!

We saw over a hundred elk today but pretty much accepted we weren't going to be photographing any big bulls this day.  This was fine because of the large number of elk we observed.  Let's just say that all changed as we headed toward home.  We ran into a group of 7 large bulls all of which wanted to flex their muscles and show off their size and power.  We saw countless sparring and antler locking.  We did determine one thing for certain, those racks aren't ready to drop just yet.  As I was looking through the viewfinder I was amazed to see this one big fella rise up on his hind legs just as I pressed the shutter.  This show of power seemed to scare the other fella and he backed down from the fight.  We never tire of observing these majestic animals.