The reasons for the decline are manifold, but I definitely have seen a massive decline in the public marshes of Dorchester. I ride all around the county looking for sika deer and ducks and I don't see the ducks (or any for that matter) that I used to. In the last couple years I've had access to some top notch flooded corn impoundments in Dorchester and I can say I've been totally underwhelmed. I've noticed the same phenomena others have mentioned with the birds leaving impoundments before legal and disappearing to only appear after legal. All that being said, I've definitely observed a change in the timing of the migration patterns. I've said it on here before, but I found the black and white video that Pitboss posted of guys shooting cans on the flats with the leaves on the trees very enlightening. It kills me to ride past the devoid marshes of FB December only to see it packed with birds in February. IMO it's not a factor of pressure. I've seen 60+ boats on the opener out of Bestpitch 15 years ago, but we still had birds to shoot. The migration pattern has changed, I think it's time to revisit the archaic rules.