the impact that coyotes will have on deer herds will vary greatly across the country. The coyote is opportunistic and will dine on what ever is the easiest, so when the fawns hit the ground, that's another easy target for the coyote. BUT if an area also has fruit, grasshoppers, vegetables, rodents, snakes, etc., then the fawns may very well be down the "list" for the coyote. For the most part, I think coyotes will kill some fawns, but in most parts of the country, there's plenty to go around w/o having a negative impact on the over all herd numbers.