Here are a few ideas you might consider.
These coyotes range over a large territory. They have learned that distress calls coming from your friend�s farm are tempting, but deadly. So call from somewhere else. Get permission from neighbors to call from their property. You can call those same coyotes from several square miles.
Set up your stand so there is a large open area down wind to discourage them circling behind. Have enough cover in front to make them feel comfortable about coming in close. If the wind is wrong, don�t call from that stand.
If the coyotes are hanging up out of range, place a gun out there way in front of the caller. Try to anticipate the direction the coyotes will come from. Keep the gunner down wind of their approach.
Take your dog Spot hunting with you. Stake him out in broken cover and crank up the hurt pup tape. You might get the lead bitch to come to the rescue. They also might try to lure your dog out to them. See if they won�t come in close enough for a shot. Try to position your stand between the dog and where you think the coyotes will come.
If this is farm country, drive the dirt roads at midday and try to spot resting coyotes. I have run into them while on squirrel safaris. The coyotes are accustomed to mechanized farm equipment moving and working around them. One more pick-up cruising around the fields won�t cause undue stress. If you can find several favorite rest areas, you can shoot several coyotes out of the same area as others move into the territory. It is also a good way to polish your glassing and stalking skills.
Good luck
