Various birds in flight, including eagles, a heron, a pigeon and ducks. Etching after F. Barlow. https://www.rawpixel.com/image/13954254/image-art-pattern-animalFree Image from public domain licenseClamator jacobinus (Jacobin cuckoo) (1777 - 1786) by Robert Jacob Gordon https://www.rawpixel.com/image/13738891/clamator-jacobinus-jacobin-cuckoo-1777-1786-robert-jacob-gordonFree Image from public domain licenseBirds flying in the blue sky https://www.rawpixel.com/image/405304/free-photo-image-sunlight-sky-tree-blueView licenseVarious birds, including pheasants, swallows and a hoopoe. Etching by F. Place after F. Barlow. https://www.rawpixel.com/image/14003462/image-paper-cartoon-treeFree Image from public domain licenseTwo birds, one a magpie, set in natural surroundings. Etching by A. Collaert, 17th century. https://www.rawpixel.com/image/13978328/image-cartoon-cow-personFree Image from public domain license