Gotcha. We have an open pond with a few cypress trees close (a few hundred yards) to the swamp I hunt. Was wondering if I should set up there as a plan B.
If the swamp just froze the previous night I would try to bust a decent size hole for them before shooting time.
If it's been locked up tight a few days the pond and a prayer may be a better option. In my experience it doesn't take long being frozen for birds to move on. Maybe two days