Jim,
Azmasteblasta pretty much said it. Most of us enjoy the ablility to lure them in with a call, but also most of us won't pass up an opportunity to take one over bait if the opportunity presents itself.
Last year a cow had calved on the family farm and ended up with two dead calves. We don't know if they were still born or if the coyotes killed them. The guy who runs cattle on our farm notified me that he saw two coyotes feeding on the dead calves earlier that morning, so shortly afterwards I set up overlooking the area.
I hadn't set there long before one showed up. I was about 100 yards away, wind was right, and there was a snow on the ground which helped me see the yote approaching better in the timber. I took it with a 6x45 AR.
Later in the early spring of this year, I shot a coyote with a .22 magnum as the yote was feeding on some deer parts I thad thrown out on the farm. My son does taxidermy work and I have been throwing out the leftovers in a particular place. I was out walking about with my new toy, a Ruger 77/22, .22 mag. and just happened upon that one. It was just a shot of opportunity that I didn't expect at the time since it had been quite a while since I had thrown out any scraps. I guess the coyote was used to coming there.
I think baiting can be productive, especially during cold times when the coyotes are hungry, but you may be in for some long waits. You might try setting up a blind at a distance and keeping watch on the bait once the yotes are hitting it. A trail camera could be useful to let you know if and when you have activity. I've thought of doing the blind deal myself. Sometimes it's nice to just sit and watch rather than run and gun all the time, adds a little variety.
Still, I mainly call them. Either way, a dead coyote means more fawns running around, not to mention a lot of other animals.
Let us know how it goes.
Calf-eating Coyote
.22 Magnum Coyote