This was the most common duck in the area at this time of year. Sexes are alike.
This species was formerly considered a race of the Spot-billed Duck (Anas poecilorhyncha) now split under the name Indian Spot-billed Duck. The Indian bird has conspicuous red spots at the base of the bill which give this species its name. However, these spots are absent in the Eastern Spot-billed Duck seen here.
Digiscoped with Panasonic DMC-LZ5 | Nikon FieldScope III | 30XWA | hand-held (no adapter)