These rams have no rules, if one can be attacked it will be even from above. I guess in love and war (and perhaps politics) anything goes. Most wildlife sightings are from the road in Yellowstone and as you can hear I was not alone witnessing this spectacle. I was lucky to see multiple battles between rams from relatively close range.
Technical: focal length not always recorded but less than 900 mm most of the time using a set up of 100-400mm lens and 1.4 teleconverter on a C100 that has a crop factor.