Julie messes up the perfect strategy
Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!
Julie starts off well, identifying that she can use string to pull over the fence panels from behind the rope. However, she then accidentally knocks over some ducks while preparing, panics, and starts felling the rest of the ducks from in front of the rope. She is therefore disqualified from the task for breaking the rules.
(Written by Karl Craven)