They kill mostly the fawns in the spring when they cant walk yet. I had a game warden tell me that coyotes and bears kill 90 percent of the fawns born. There a few years ago before ppl really started hunting predators around here you could see a noticable decrease in the deer population. Where I used to hunt it was hard hunting to begin with but then it went to impossible hunting lol I saw zero deer in a three year period. I would set bait piles and trial cameras and coulnt even get a picture of one. I got a lot of raccoons and coyotes tho. Some of the neighbors on bordering land saw it too and started cracking down in the coyotes and the deer numbers picked back up the last year I hunted there I killed one good buck and a nice doe and my buddy shot a really good 8 on the bordering property