Report 10877: Midnight vocalizations disturb camping family near Mormon Mountain.

a few years agao i took my wife and the kids camping and quad rideing....we camped in northern arizona about 30 miles east of flagstaff.....we camped in an area named Mormon mountian, very old forest never logged, old grown trees everywhere....that night while we were going to sleep in our tent i heard the yell first..thinking i might have dreamned it first i never got up or said anything  to my wife at first...then it yelled again makeing a whooping sound....it did this over and over as it went around our camp..i got up thinking this thing might be hostile...ill tel you ive been in az all my life and have hunted and fished here all my life...and ive never heard anything like this.UNTIL.....i heard thesame sound or yells on your website.....