Need more info. Is there a way to get into a stand near the scrape. If it' s along the edge of the field, maybe you could setup someplace on the other side of the field. Find the trails that are most heavily used around the field and setup within 20 yards or so. Chances are they may be bedding in the fringes of the field so you need to find a way to get into a stand without spooking them. I sounds like it would be a prime evening spot to hunt.