If you see birds in your area that are resting or sleeping, this would make sense. I think all your decoys should show a low head and sleeping pose to show a flock confidence. Having some low heads or breast resters at the end of the rig or where you expect them to land as if they also may have just landed. Also, play the direction of the sun where you set-up. In areas where birds have been gunned alot, the birds may want to set in up-sun from the decoys to see if they like what you offer.
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