The location is in Missouri and on 10-11-2015 at approximately 10 pm I was driving around and thought I would stargaze at the old conservation fire tower on 21 highway near the old 21 drive-in.
I parked my truck by the picnic table. I turned off my truck and got out looking at the stars. It was just a moment and I noticed a whooping call it sounded like a monkey at the zoo. I listened for a good 20 minutes the call was the same a whoop whoop then a pause for a short time then another whoop whoop. It sounded like it was coming from the heavily wooded valley below me.
Many witnesses like this witness describes the sound they hear similar to this recording
Brian Woods did a follow up interview with the witness and states: “The witness states that from east of the tower, estimated 150-200 yards away, he heard a strong, high pitched “whoop….whoop” sound. He mentioned during the call more than once that he was sure it was an animal sound that he had never heard before, except for maybe a primate at a zoo. He also said that he got the impression that the animal was “young sounding” due to it’s vocal qualities being very smooth and almost youthful in nature.
The sounds repeated in an identical pattern, with a long pause in between, several times. This went on for twenty minutes. The witness determined that the animal was gradually moving from one side of the valley to the other, but not necessarily farther away. Each set of “whoops” came from a slightly different location, but still maintaining at the distance of around 150 yards. After listening intently for a while, the witness returned to his vehicle, where he spent several more minutes before leaving.
The witness has asked that his occupation not be included in the report, but it apparently affords him significant time during overnight hours in this area, and he feels quite familiar with more run of the mill animal sounds. This, mixed with his lifelong hunting and outdoor experiences, leads him to be confident that the sounds he heard where unlike any others he had ever experienced.”