
Originally Posted by
GeologyMule
Also, the farm more than likely has a fence around it. Granted if a walker was to hear and smell stuff going on, they may make a better effort to get across the fence. Other than that I would say the walker is more inclined to come across a fence and follow it as opposed to making an effort to cross it. In one of the comics they get into the "herds" and how when they hear a gunshot far away they don't focus on the gunshot and try to get where they think it came from, but rather it tends to point them in that general direction. Other sounds, a nearby walker stepping and breaking a stick could have the same effect. Small variations in the direction.