Bigfoot powerline theory
Bigfoot uses man made corridors such as powerlines, forest roads and horse trails to gain access and cover large amounts of ground. Forging through the thicket would not be an effective way to manage this. So Bigfoot takes advantage of what he finds just like many other animals do. There is also a theory that Bigfoot communicates on the high tension wires by knocking on them, sort of a Bigfoot cell phone.