SG Heritage Dictionary

Sheldrake [Noun] Webster's Dictionary 1828

An aquatic fowl of the duck kind, the Anas tadorna . It has a greenish black head, and its body is variegated with white.

Sheldrake [Noun] Webster's Dictionary 1913

1. Any one of several species of large Old World ducks of the genus Tadorna and allied genera, especially the European and Asiatic species. (T. cornuta, / tadorna), which somewhat resembles a goose in form and habit, but breeds in burrows.

2. Any one of the American mergansers.