I'm no coyote hunter either but I've done a bit of fox calling in my time.
Stubbies tip about remote calling is right on the money!
I started out with mouth calls and though I'd call them in, most of the time they'd approach close enough to watch from a concealed place until you moved and then bolt away.
I bought an inexpensive tape deck and recorded a 45 minute tape with periodic calls spaced from 5 to 10 minutes apart. The difference was amazing. The foxes came in focused on the tape which was a good fifty yards from my hide. I probably tripled my success rate after switching to that method.
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Keith
The Bears and Bear Maulings Page:
members.xoom.com/keithrogan