The East doesn't give up her predators easily....
As most of the replies to this post are from folks in the west, I can tell you that things are completely different here in Ontario. I have hunted predators with great success in Saskatchewan, and I have also hunted extensively for them here in the East, again with success. Here are some crucial tips that will help you here in Ontario;
1. Be an opportunist. Don't rely only on calling as its success is limited for a number of reasons. Do call, but also look for foxes and coyotes on the move at any time of day, drive past them and set up an ambush/cut-off, or call them if no other option. Or look for them curled up sleeping on a drift or in the middle of a field. Look for the top of an orange basketball or grey beachball. Glass it for fur and start a stalk. Covering country can often be more productive than calling. Be flexible.
2. Always call facing downwind but watch 360 degrees for a predator coming. In every instance I can recall, predators I have called have always headed downwind regardless of whether they started behind me or to the right or left. Face downwind and you won't miss seeing them.
3. The downwind area you are facing should have NO cover. It should be open with bushes to the left, right or both. This forces them to expose themselves to try to work downwind from the flanks. Otherwise they'll sniff you while still in cover.
4. Call and move one mile, repeat. This is systematic and you'll have better success than a bush here, a bush there at random. There is so much cover in Ontario, not as many coyotes. You gotta find them by grid approach.
5. Stay longer. At least 20 minutes, often 1/2 an hour. Usually they take longer in the East to respond. Not always though.
6. Be satisfied with even just one predator in a day in the East. Fact is, in most places in the west you'll see 20 predators on a good day and harvest 4-6, here you'll see 6 on an exceptional day and maybe shoot 2 or 3. Often you'll get skunked, most days you'll get just one. But the work you put in sure makes you proud of that one. You'll also make sure you shoot very carefully to make it count. Next one could be a while.
Good luck!
John
P.S. we have a video on DVD coming this summer that is shot half here in the east and the other half in the west. Both locales feature over two dozen hunts for fox and coyotes taken by a variety of techniques as mentioned above. You may want to get on our advance release list at the website.