I don't hunt Ducks or Geese, but do hunt coyotes.

Yesterday, while hunting west of Portland in the North Plains/Banks area, I noticed a distinct lack of Ducks throughout the area. Like almost none! Lots of Geese, just no ducks.
Is this normal for this time of year? I thought there were lots of Ducks in the Valley by Nov. 15th. :whazzup:
Any thoughts would be appreciated. I am just curious!
Rusty