I've killed a few banded ringnecks and got a couple of banded greater canadas while shooting next to our airport under USFWS permit, and also have killed mallards while doing the same control hunts. Have not killed mallards while actually duck hunting. I used to be into it big time and still have decoys,(lots) , boats, etc. One of the things on my bucket list is to do a flooded timber mallard hunt. Done the Argentina dove, almost have my turkey grand slam, shot geese next to the yellowstone river in Montana, but the mallard hunt has eluded me. Would also like to take an elk, but that one may never happen.
Called in a band once and reported it as a ringneck duck killed on Mallard Pond, north of Tallahassee. Got the info back as a mallard, banded 2 years before in Tennessee. Have not had much faith in that system since then.....