Just a thought, and i hope i don't come off to harsh or brash but i'm just calling it like i see every season. Usually when we get a big push of birds and they first get here they are in plain sight, on big water and it just looks like they are every where. Everybody sits back and goes "the birds are here, we got birds finally".
Then after a couple weeks of pressuring the crap out of them because they are easy to find and haven't been hunted or the birds finally spread out and get into areas that hold better food sources and better cover than what is in front of someones pier or out in plain sight or the weather turns off hot and they stop moving everybody goes "well the birds are gone, weather pushed them out" or "they flew right by us". People say this just about every year.
I can tell you there are birds around people just have to go find them, point blank. Because now they have had enough time to spread out, they have seen some hunting pressure, they are not going to be sitting right in your back yard or in plain sight. When we got the big push of birds it was easy pickens. Now it just takes a little more work and scouting to get on them, and this hot weather isn't going to make it any easier.
Good luck hunting and merry Christmas

"When blizzards and storm winds strike, other hunters curl up by the hearth. Waterfowlers go forth."