Using knowledge and experience to identify American Wigeons.
American wigeon ducks (center and top). Green-winged teal for comparison (bottom). There are birds that I can identify immediately (I nail robins every time), there are birds I don't know at all, and then there are birds I may be able to name if I have enough time (a year is usually enough). And then there are birds that I mix up. For me, I used to mix up American wigeons and green-winged teals. Although they look quite different, the reason was due to the green teardrop shape that starts at the eye and runs backward, curved to a point. There are a hundred other differences, but that was the one that I seemed to focus on. And therein lies the problem. It's the similarities that allow you to group birds by type and the differences that allow you to tell them apart. I had become accustomed to using a narrow band of criteria to aid in identification. This is where two things come into play. Experience and knowledge. Experience can only ...