The Red-Billed Parrot, Pionus sordidus from Natural History of Parrots (1801—1805) by Francois Levaillant. Original… https://www.rawpixel.com/image/554795/red-billed-pionus-vintage-posterFree Image from public domain licenseSombre Partridge (Synoicus sordidus) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881)… https://www.rawpixel.com/image/321310/free-illustration-image-partridge-gould-illustrationsFree Image from public domain license