Presuming the Mech heard very little, and it would definitely hear something if the Pater was moving around in its vicinity in the near silent forest, Higan turned around and climbed up the hill. Unmolested, he should reach the ‘summit’ fairly quickly. He was basically following Scout 101, find the tallest spot and look around.

Upon reaching it he’d be able to do just that. The blindspot was to either side of the thin strip of vision he had remaining, swapping to Electric vision and slowly spinning around 360 degrees should leave little potential for the Pater to avoid his gaze. He could listen out while doing it as well, so there was a good chance he would re-aquire his prey if it lurked on the surface. If not, he’d probably have to follow his GPS home for repairs.