A lot of hunters like the "Big" birds on the strap but it all depends on the area.
Ponds are great but Ocean salt water, brackish water can give ducks a "Certain" off flavor that I don't rally care for.
Sprig "Pintail" birds can have a different taste, depending on where they feed.
In the Pittsburg, SF area they are not that great but if from the Sacramento rice belt area, they are fine tasting, same with mallards.
I have yet to have a bad tasting Teal from the BBQ or oven
(oh my God) if you are lucky enough to swing fast enough to bad this little duck.
Plain is good but we some times soak the ducks in OJ and Brown sugar over night before putting on the BBq.
We tend to like medium rare for meat ,tenderness.