You will have to do some reading: E-Magazines
and it should answer your questions.
Things to consider:
- wind (coyotes come against the wind)
- camo (no shiny barrels, etc.)
- check your caller for white noise. Is it humming?
- limit movement
- set up your caller about 50 yards away
- look for tracks, it would be easier to see on the snow
- hunt near pastures where cows are around
- hunt on the land with gophers or other small varmints (here in SK we have plenty of gophers
- change distress calls, your coyotes might already beware of your sounds (especially when someone else hunted there with foxpro)
- mouth calls (when battery dies or just to change a distress call a bit)
- electronic decoy (or something that moves, like feathers on a stick)
I hope this helps
ps. There is no I approach that fits all scenarios! Try different methods!