We've known of three of our stock mutilated the past 4 yrs. One was a 4 month old bull calf, sex organs a brand removed, tongue, etc. He was about 250 yds. from a road that is used some. Had an older cow found by an elk hunter at the head of a really rough canyon that you can't hardly reach by horseback, same deal, bag, vulva, one eye, tongue missing. Then last summer had a two year old heifer found in June just off of a trail we use a lot to put out salt, mineral, etc. Same story, sex organs, tongue, one eye removed. Also had a neighbor call the same week the bull calf was found, had heard about the calf, and he said his teenage boy had found a cow of theirs that looked suspicious, and he was leaving for a couple days, and he wondered if I would go take a look at her and confirm that she was mutiliated as well. She was in the same shape. Just off his salt trail she laid, vagina, rectum, bag, tongue, one eye, all gone with precision in the removal. I've done a lot of research online with the subject, and the theories abound about what is going on. One thing I know is B.S. is the fact that some wildlife EXPERTS!! say that it's natural death and that coyotes, crows, buzzards, etc. cause the missing parts. I'm 48 yrs. old and been around livestock my whole life, and I will GUARNTEE!!!!!! that it is not natural causes of death. My theory is that the cattle must be stunned or killed without a gunshot. I believe they are picked up and worked on in another area(in a helicopter, or plane I believe) and then laid back down when the job is finished. There is no disturbed grass, or any trace of blood anywhere around the area. The surgery or removal of parts almost looks like laser work. Our brand is a bottom half of a box and a V underneath, and the bull had the box a the V removed. It's the only one we've found that way. We called the sheriff and he came out and took photos, but nothing came from it so we haven't reported the last few. I think it is the U.S. Government testing for something. We have noticed you usually see those black hawk helicopters in the area around the time you find one. That would explain the no sign of blood, no tracks, etc. The cow in the canyon had to have been dropped, you can't hardly get there on foot or with a vehicle. The rest were easy to reach. It has been happening since the 70's in this area as well, but seems to be an uptick (especially on our place) the last few years. If any of you have anymore ideas as to who or what, please respond.