Outwitting wily wild dogs

I am lucky enough to have access to a property 45 minutes away from work. For the past four years I have been helping out the owner to keep some wild dogs in check. Recently, a mate and I have been targeting a part of the property that is not in use much. During the past two trips we have come across a pair of dogs, one black and the other tan, harassing the cattle. Even though we have watched them at length through our binoculars, we have not been able to veer in closer than 500m due to the terrain.

Then one afternoon after work, I decided to give it another try. I was going to be solo this time as my mate was away with work duties.