Thunderbird Sighting Caught on Camera - this clip from a 1977 documentary shows an alleged Thunderbird in Illinois. This was filmed by a Native American tribal chief who was contracted by CBS News to obtain footage of the legendary creature Chief AJ Huffer, was hired to look for giant birds called Thunderbirds. In July, he spotted large birds and recorded this video. The footage became extremely popular and was even featured in an episode of Monsterquest. #creepy #cryptid #paranormal #scary #bir