Hunter - The book "Silent Invasion" by Stan Gordon documents a lot of very unusual reports from western Pennsylvania in the early 70's. Major Bigfoot/UFO flap occurring there......here's 2 examples: (cliff notes versions)
1973 - Two girls were walking home near some woods and saw a 8' to 9' tall white bigfoot carrying a small glowing sphere in one hand. Father of one of the girls goes back to investigate, they hear him scream, he comes out of the woods looking very dazed. Tells the girls "Don't ever go back there again".
1973 - Steve Palmer case. Giant red orb was witnessed by 14 people land on a neighboring farm. Steve Palmer and 2 younger kids drove over to see what it was. When they arrive, the red orb was now a huge white dome on the ground. Shortly thereafter they start hearing sounds like a baby crying, and two large Bigfoot creatures are seen shambling out of the nearby woods. One was slightly shorter than the other. They were walking along a barb wire fence, and the way they moved forward was strange. The larger of the two would walk only as far as the next fence post, then make the baby crying sound, and the smaller one which was waiting behind at the last fence post, would then move froward to join the larger one. The two younger kids become very upset, and Steve (who had brought a 30.06 rifle ) fired a couple of tracer rounds above the larger creatures head. At that moment, the giant white dome on the ground simply vanished.
At this point the creatures turned and started moving back towards the woods, and Steve fired 3 shots (not tracers this time, actual bullets) and hit the creature at least once, with no sign that it harmed the creature.
A few hours later Stan Gordon and colleagues show up at farm to investigate. Steve takes them back to the neighbors farm where all this took place. Shortly after arriving, Steve begins to act very strange. He started growling, and let out an "inhuman scream" and became very combative, with several others trying to hold him down. Several other people there started feeling as if they were going to faint. Steve said during this episode, he was "shown visions of the world burning".
There's a LOT of really strange occurrences with this particular event, the report in the book is 18 pages long. So, here's just a few more items of interest. After the encounter, Steve began having many paranormal experiences in his life. He also had a visit by Men in Black regarding his encounter. Steve began to be able to predict future events to some degree, and it was also mentioned that he began to have a special connection with birds, whatever that means.
During this flap, there were also lots of 3 toed tracks found, and UFO's seen over a particular area, with Bigfoot activity commencing in that area shortly there after. Sometimes immediately.