We got set up on the edge of a wheat field and a cut bean field, hid the blinds in some shorter bean stubble with the wind at our backs (slight breeze), set the decoys up in two groups on either side of our set up. Birds started filing in at about 8:30 but every group came from our left, circled and dropped in from behind us. We couldn't see them until they were right on top of us and missed several opportunities. We couldn't figure out why they were landing with the wind??? Also had the majority of birds fly by and land in the wheat field about 250 yards away??? Killed 4, but had to leave by 9:30 (church). Still had birds coming in. Saw probably 250 or so in about an hour.