Odd marks. Bear scratches are deeper from my experience. Buck rubs are usually on smaller more flexible trees and not this shape. I don't know what they are. The thing that's weird to me about them is the small saplings in front don't seem damaged and if the trees were hit by machinery there likely would have been more damage to the saplings. And the damage is all around the trees not just on one side. I haven't even seen moose rubs, anyone? Bueller?