I hear you Sonny.
Even some of the timer around here. You can't see them in it either. Majority of the coyotes I called, came from timber. I never seen them, until they stepped out into a more open area. Or out on the open edge of the timber.
But I knew, if one was in there bedded. That coyote would be bedded in a wind brake on a down-wind slope. Also knowing this, any coyote would also be facing down-wind. When possible, I never presented myself to their down-wind. Dependant upon, if I had permission on adjoining property. Mostly setting up across wind from the cover.
I would come into the area to call that timber, from across the wind, or slightly up & across from the timber. The prevailing wind[which is most often]. Would then carry my scent down-wind & also parallel to the timber.
I most always set-up, where my down-wind was open a couple hundred yrds, if possible.
I've stated this before as well. When I get out of my truck. My intent is to be dead quiet, from then on out, to my stand. I also would use any terrain to conceal my carcass on the way to my stand.
Adult Red Fox, some anyway. A hunter can sound like an elephant going to their stand & still not alert/[make him run away]. Coyotes on the other hand, you had best be invisble & dead quiet.
Whether I was stalking in on a Red or a coyote. I remained invisible & quiet the best I could. I'd watch where I planted each foot, to cut my noise. I also stepped softly, like a cat. Not putting full weight on each foot as I walked. Without feeling & listening to any noise under foot.
If I made a snap or a crunch. I would pause for 5-10 minutes or so, before slowly moving forward.
Another thing I would do, is pause down in a valley before cresting the next hill. To get my pulse & breathing rate back to normal. As I would get near the ridgeline. I would slowly go just far enough that I could see the next hill top. Then continue slowly advancing forward. I would go very slowly, paning 180 out in front of me.
No matter if I was heading to a calling stand or stalking in on one, I had already seen. Samo...samo.