If you can, use more than one and vary the heights. We usually put at least one very close to the ground and usually don't use the full pole on the others. We take at least one section out. This seems to get them to finish a little better. We have used as many as 4 spinners and it does suck the ducks in but get them down when the geese are flying, they don't seem to like them at all.
IT'S THE HUNT - NOT THE HARVEST