Well.... Stan, it was 3 hours..... but the alternative is ......? glad you stuck it out and got a limit.....
Just to offer a "contrarian" line of thought..... when birds are scarce , I resort to a different tactic.....bigger gun/shell/choke combination, and reach down in my "shooting tool bag " and try any reasonable chance , calling on a confidence that it takes a bit to bring out...but I tell myself I have done this shot before, let's see if I can pull it off again....
Days like you experienced today make me recall so many shoots with my fine friend and mentor who disdained small bore guns for just that reason..... he wanted to feel he had the best tool for any opportunity that presented itself.
It proved to be a theory well based in experience.....There is some real satisfaction in a bag limit taken when the conditions are Tough. Congrats on yours today.