Coyotes are scavengers no better than a crow or a magpie. The ones around here survive mainly on small rodents, mice, p. dogs, rabbits and on dead cows that farmers drag out back to get rid of.
When a coyote kills a deer that deer is sick, weak, or young. There also has to be more than one yote involved in this process because even a big coyote 70lbs. cant handle a mule deer takedown. The biggest pack of coyotes ive ever seen is three so I think that in this area especially coyotes kill a very negligable number of deer.
I love the smell of fresh shotgun in the morning.