Strange but true. Two fellows fishing at night heard what initially sounded like 2 birds calling back and forth. This occurred in No. Calif. at about 2,8000 ft. elevation. Soon the whistles were accompanied by a series of tapping sounds, also back and forth.
Witness also reports hearing loud footfalls.
Unfortunately, I was unable to go to the location. And don't forget all the other science resources for dinosaurs and paleontology . Check out our toy store and other great pages .