Second grade school girls from Calipatria clutch pintail ducks. They are studying banding and migration at the Salton Sea… https://www.rawpixel.com/image/8765640/photo-image-vintage-public-domain-kidsFree Image from public domain license‘“On that island stands a church; in that church is a well; in that well swims a duck.”’Illustration by Kay Nielsen in East… https://www.rawpixel.com/image/9975522/image-person-moon-artFree Image from public domain licenseFowl Skeleton, Lateral View (Study for the key figure to Table V), (1795–1806) drawing in high resolution by George… https://www.rawpixel.com/image/3820015/illustration-image-art-vintageFree Image from public domain licenseA park scientist measures the beak of a harlequin duck. Original public domain image from Flickr https://www.rawpixel.com/image/3312497/free-photo-image-research-scientist-scienceFree Image from public domain licenseFowl Skeleton, Lateral View (Finished Study for Table V), (1795–1806) drawing in high resolution by George Stubbs.… https://www.rawpixel.com/image/3820064/illustration-image-art-vintageFree Image from public domain licenseFowl Body, Lateral View (Study for key figure to Table X), (1795–1806) drawing in high resolution by George Stubbs.… https://www.rawpixel.com/image/3819891/illustration-image-art-vintageFree Image from public domain licenseDuck character reading concept cartoon publication book. https://www.rawpixel.com/image/14221562/duck-character-reading-concept-cartoon-publication-bookView licenseDuck character reading concept cartoon publication book. https://www.rawpixel.com/image/14221688/duck-character-reading-concept-cartoon-publication-bookView licenseFowl Body, Lateral View (Highly Finished Study for an Unpublished Table; Shows the Last Stage in Dissection)… https://www.rawpixel.com/image/3820002/illustration-image-art-vintageFree Image from public domain licenseFowl Body, Lateral View (Probably Prepared for Transfer to the Plate for Engraving of Table XV), (1795–1806) drawing… https://www.rawpixel.com/image/3819974/illustration-image-art-vintageFree Image from public domain licenseStudy sketch of ducks by Julie de Graag (1877-1924). Original from The Rijksmuseum. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/467055/free-illustration-image-julie-graag-public-domain-cartoons-graag-ducksFree Image from public domain licenseStudie van een eend met gespreide vleugels (1865 - 1878) by Jules Joseph Augustin Laurens, Juliette Bonheur, Lemercier and… https://www.rawpixel.com/image/13765484/image-paper-cartoon-artFree Image from public domain licenseNature Studies : Supplejack, gannets etc - 1929 (1929) by Leslie Adkin. https://www.rawpixel.com/image/13029049/nature-studies-supplejack-gannets-etc-1929-1929-leslie-adkinFree Image from public domain licenseDuck Toy Bricks Rugby Secret Question Matching https://www.rawpixel.com/image/814946/free-image-rawpixelView license