There are 3-4 "magic" days during any particular animal's breeding season in which even the smartest and most wily mature old critter becomes DUMB.
I've been fortunate to capitalize on this a few times with whitetails, 2 Mule-deer, a respectable Antelope, a couple of bears, and one big old fight-scarred coyote.
Day in-Day out, a mature coyote is smarter, sneakier, and tougher to sneak up/catch off-guard and kill than any other mammal I've hunted (deer, elk, moose, antelope, black bear).