I would say it is different in different parts of the country. When the coyotes get thick the deer population goes down, the rabbits and birds also disappear. I am also taking into consideration of the hard winters, drough and etc that could cause a downslide in this population. I have lost calves to coyotes, and colts to Mountain Lions. Had a friend that had more problems with bears running his cows through the fence. Our cows are scared to death of something they haven't seen before. Had a neighbors lama that lives with his horses get into mine, had quite a few wire cut and fences to fix before we got the lama removed. So what works for you people doesn't always work that way for others.