Have a cattle ranch just a 10 minute drive from my house , he was useing a dead pile when i first started calling the area , that was about 8 years ago , I told him he was attracting the dogs and teaching them to like blue ribbon beef LOL. he quit useing this method of disposal four years ago , as of one year ago i was still taking coyotes from the area ( within 300 yrds of the old dead pile) goes to show you what learned habits of feeding areas will do .As time goes by i am seeing less and less sighn in that area , and there is alot less damage control work to be done . Hes not losing anywhere near as many calves as in years past , i attribute this to my culling out the older less able and also the removal of the dead pile . If you call them they will come , If you feed them they will come and sometimes kill . I think alot of calves die naturally and when the rancher sees coyotes on the remains they just conclude that it was killed by the coyotes . When i get a call from a rancher stating ( I have coyotes out with my calves) I always ask Are they killing any? they usually say no , I tell them to leave those coyotes alone , they are keeping the bad ones out, and simply feeding on the afterbirth. most of all predation i have seen over the years by coyotes has always been done by a older or injured coyote.Now that coyote may come into a calf distress but i personally have never had any luck useing it .But ill keep trying it from time to time , I hate saying never . Jerry