Muscovy Duck

Bilder-atlas zur Wissenschaftlich-populären Naturgeschichte der Vögel in ihren sämmtlichen Hauptformen Wien,K.K. Hof und Staatsdruckerei,1864. biodiversitylibrary.org/page/33050672

The book of poultry New York,The Macmillan Company,1921. biodiversitylibrary.org/page/27066518

A natural history of the ducks /. Boston ;Houghton Mifflin Company ;1922-1926.. biodiversitylibrary.org/page/38637105

A natural history of birds :. London :Printed for the author and sold by William Innys in St. Paul's Church yard, John Clarke under the Royal-Exchange, Cornhill, and John Brindley at the King's Arms in New Bond-Street,MDCCXXXI-MDCCXXXVIII [1731-1738].. biodiversitylibrary.org/page/41130842

A natural history of birds :. London :Printed for the author and sold by William Innys in St. Paul's Church yard, John Clarke under the Royal-Exchange, Cornhill, and John Brindley at the King's Arms in New Bond-Street,MDCCXXXI-MDCCXXXVIII [1731-1738].. biodiversitylibrary.org/page/41130840

A natural history of birds :. London :Printed for the author and sold by William Innys in St. Paul's Church yard, John Clarke under the Royal-Exchange, Cornhill, and John Brindley at the King's Arms in New Bond-Street,MDCCXXXI-MDCCXXXVIII [1731-1738].. biodiversitylibrary.org/page/41131189