"Their intelligence is what makes them so difficult to track," says Robert Lieterman, a park ranger and BFRO volunteer from Fortuna, Calif." But like many other wild creatures, they are very territorial, so we can use that trait to help study them."
When a Bigfoot's space has been intruded upon, says Moneymaker, the creature will resort to intimidation. "They'll break off large branches in the darkness and smash them against the surrounding trees to let you know their power," he claims. "Sometimes they'll actually throw those branches in your direction or even bluff charge to try and frighten you."
Bobo Fay, a regular on BFRO expeditions, says he learned firsthand about the Sasquatch's territorial behavior. On a late-night field trip in Northern California, he had set out on his own to "call-blast"—the BFRO term for playing back audio recordings of Bigfoot vocalizations on portable speakers—at a location 14 miles from the nearest town. "I was sitting in a field a few yards from the tree line when I began getting some response from a distance and realized, as I sent out more calls, that the replies were getting closer," Fay recalls. "It took almost 45 minutes until he was on the edge of the tree line, and I could see him pretty clearly moving in the shadows. His screams were incredibly powerful, and my usually fearless pit bull was terrified, hiding in the back of the camper. This `squatch had broken off a huge branch and was smashing it against the trees. You'd have thought it was Barry Bonds in there swinging that branch from the sounds it made. He was also shaking these 70-foot trees and making them swing like they were in a gale. This went on for what seemed like an hour, with my dog cowering in fear and me with tears streaming out of my eyes. When I finally got in the truck and tried to drive out of there, it was alongside. I was doing 30, and it kept up easy. Even now it still makes the hair on my neck tingle when I think about it, but that's why I'm here. I can't resist the possibility of another encounter; only now, I'm far better mentally prepared."