Bigfoot or 'wildman of the woods' reports date as far back as 1100 AD in Britain. In recent times, a number of Bigfoot cases in the U.K. took place near ancient stone circles or prehistoric burial mounds and sometimes peoples' car engines/lights would fail around the time of a sighting. UFOs or balls of light are occasionally seen in association with Bigfoot, such as in the 'Big Thicket' in southeast Texas, he noted.These facts suggest to Redfern there may be a paranormal aspect to the Bigfoot creature-- it could have the ability to traverse realms, and its travel through portals may stir up electromagnetic activity.

In his investigation of crop circles, he interviewed a circle maker, who said he was guided by a higher power when constructing the field patterns. Strange phenomena including missing time, balls of light, and animalistic screams, sometimes accompanied his activity, the circle maker told him.