I'm about 20 miles east of Kansas City. I've hunted ducks hard for 15 years or so, and have never killed a canvasback, and have only seen one get killed in my entire hunting career. I've shot a few redheads, but not many, less than 5, probably.
We shoot mostly mallards, and get quite a few gadwalls and green wing teal. I'll shoot a few widgeons and pintails each year as well. All the wood ducks are gone by the time we open up.