I kill a lot of coyotes, I hunt with a group of family and friends from now until almost end of march, started today actually, been doing this for almost 30 years. This I can tell you, coyotes are h*** on deer, and there getting better at it, years ago I would find coyotes cleaning up road kill, left over wounded stuff after season the normal thing you would expect, the past few years it seems as though there killing more healthy mature deer at will, are Northeast coyotes are a bigger animal than a midwestern coyote so maybe it’s different for you midwest guys I have no clue with that but around here a pair of healthy coyotes can and will drop a fully grown deer when and where they want, especially when the snow is deep. That being said if I’m on a good rut day hunt and see one sometimes I let him walk just so I don’t spook my spot, it depends on the day and mood I’m in, I know his days are numbered anyways after deer season ends. If you have a lease or own a farm where you spend most of your deer season, and the coyotes get out of control or roam at free will, what fawns and stuff they don’t kill will move on, just the harassment the deer take from them is enough to make them relocate in my opinion. I had a bunny hugger neighbor move in, put a stop to coyote hunting for a few years, we always kept them in check, are deer numbers dropped, deer hunters were pissed, daytime coyotes roaming the meadows was a daily thing, the neighbor is now gone, it was a hammer fest on coyotes again, especially that first year, I’m back to seeing deer in the daytime feeding again instead of coyotes. I don’t hate coyotes and have no vendetta with them, I have a lot of respect for coyotes, coyotes if left unchecked will alter your deer hunting and I don’t need a biologist to produce a study to tell me otherwise.