re: Waterfowl migration from south to north?

It seemed to progress over the years at the Atch delta. As the delta migrated south, so did the hunting. It was in the late 90s when I first heard of the birds rafted up offshore from a guy on crewboat. Now with a blind less than 200 yards from GOM, I get to witness it first hand on way too many occasions. North wind and beach is like glass and they sit within 1/2 of coast. This year around 8:30-9am, there would be a massive flight offshore almost daily.