What ever works for ya. Bare ground should be attractive to the birds. Myself I love to hunt when the snow is on. My pit is on the edge of a hay feild and a corn feild and when the snow is on I try to imitate a resting area on the hay feild. With snow on the ground geese can see decoys from a great distance and it seems that I can decoy geese from a greater distance because I'm able to get their attention by being more visable.
Double Clucker
Double Clucker