Hi Dogfish, glad to see you on this board. If you are hunting were I think you are you should be in for a treat. The Willow Bar that is on the east side of Sauvie Island is across from our club. If I understand your post on the other board you should be directly across the river from us. There have been large numbers of commons or greaters if you call them that, using the yacht
lagoon on Willow Bar. I don't think you will need a lot of decoys if they are good ones. The birds were decoy shy at the end of the regular season and were call shy as well. I'd give them a hello
call and then be very sparing with a few clucks.
Good Luck and how about posting how it goes.