i live in oklahoma up in the northern part where there are some pastures and mostley wheat fields, i take a little camo bag with my foxpro and decoy walk out into the wheat field set up caller and decoy, walk back to the edge of pasture set up turn on call and a few mins later he comes runing in kill him ,get up and go to next set i myself never worry about getting spotted, and i have also walked in on some flat grassed pastures and set up and started calling, within a few mins the yote comes runing in and i stop him and shoot him, and get up and go to next set i just dont worry about it i guess, i just got to a lott of ground to hunt to worry about being spotted by the coyote is all i guess,where i call it seems to me they come in from a distance to the call , not just right where i am so i wouldnt worry about it, i know they can smell you before they can see you