The best place to go for game birds is in the Okanogan. Grouse, quail, chukars and Hungarian partridge in addition to waterfowl are all available there.
In Western Wa., what seastrike said or you could go to one of the bird planting areas, if that's still being done.
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"I didn't care what she didn't 'low--I would boogie-woogie anyhow" John Lee Hooker