Greg,
If you look at a post I put up recently "one of my hunting spots", you'll notice that the southern deer travel route has a red "X" on it. No one asked what it was for, and I wasn't going to say unless someone did, but it's where, last year, I put up a wooden frame and put a white "T" shirt and a ball cap to"refine my funnel" and makethe deer use the trail I was hunting. Worked like a charm.