1. Old World gooselike duck slightly larger than a mallard with variegated mostly black-and-white plumage and a red bill
   "The sheldrake's striking plumage made it easy to spot on the shore"
    
2. Large crested fish-eating diving duck having a slender hooked bill with serrated edges
   "The sheldrake used its serrated bill to catch fish";
   - merganser, fish duck, sawbill

Derived forms: sheldrakes

Type of: duck, sea duck

Part of: genus Mergus, genus Tadorna, Mergus, Tadorna

Encyclopedia: Sheldrake, Christopher