Here is Chris herding ducks at the start of his run in an ASCA trial. I am not really sure what part of the course this shows, but it is probably turning the ducks towards the center of the arena after they have come through the second corner obstacle. The ducks are grouped together closely and they seem fairly calm, so that means that Chris is using about the right amount of influence.
Whenever I am asked what breed of dog Chris is , I reply that he is a "Yurgess" (meaning "your guess is as good as mine").