Shelduck (TADORNA TADORNA) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of… https://www.rawpixel.com/image/326201/free-illustration-image-duck-abstract-vintage-animalsFree Image from public domain licenseShelduck (TADORNA TADORNA) illustrated by the von Wright brothers. Digitally enhanced from our own 1929 folio version of… https://www.rawpixel.com/image/326260/premium-illustration-psd-tadorna-tadorna-von-wright-brothers-americaView licenseTadorna cana (South African shelduck or Cape shelduck) (1777 - 1786) by Robert Jacob Gordon https://www.rawpixel.com/image/13739221/image-paper-plant-artFree Image from public domain licenseBergeend (Tadorna tadorna) (1596 - 1610) by Anselmus Boëtius de Boodt and Elias Verhulst https://www.rawpixel.com/image/13743299/image-paper-cartoon-artFree Image from public domain licenseBergeend (Tadorna tadorna) (1596 - 1610) by Anselmus Boëtius de Boodt and Elias Verhulst https://www.rawpixel.com/image/13743295/image-paper-art-watercolorFree Image from public domain licenseRadjah Shieldrake (Tadorna Radjah) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881) Birds… https://www.rawpixel.com/image/321384/free-illustration-image-australia-gould-common-shelduckFree Image from public domain license