You are right about that, Debbie! They are striking in appearance. I can only imagine how exceptional they must appear when they are in hand - something I have not seen.
Sometimes, though, because of their superficial similarity, many people assume they are looking at canvasback ducks and entirely miss identifying the redheads. If you see a flock of canvasbacks, look much more closely and study the flock. You will most of the time come to realize that you are actually seeing redheads mixed in with them.
Here is a decent, high noon photo which shows how easily you can overlook the redheads in a flock of canvasbacks. The smaller male redhead, with his rounded head, silvered back, and powder-blue beak, is in front of the male canvasback.
If you live
anywhere in the United States, Mexico, and Cuba you will see them at lakes, farm ponds, playas, prairie potholes and oases at some time in some part of the year. This
range map will help you know when to start looking for them in one of these areas.
As the map shows, redheads are also scattered through much of northern Central America in the winter, and some areas of Canada in the summer as well. If you live in those areas, you may try looking for them at those times.