A swallow sitting on a rock above a town with two other swallows flying in the sky above. Coloured wood engraving by J. W.… https://www.rawpixel.com/image/13966952/image-paper-cartoon-artFree Image from public domain licenseCrested white bird and crested brown bird perched on the branches of a gnarled, twisting tree with pink blossoms; blossoming… https://www.rawpixel.com/image/7636870/image-art-vintage-treeFree Image from public domain licensePNG Flying swallow birds, vintage animal illustration by Nampei, transparent background. Remixed by rawpixel. https://www.rawpixel.com/image/10169408/png-face-flowerView licenseBird animal silhouette wildlife. AI generated Image by rawpixel. https://www.rawpixel.com/image/12050334/image-illustration-animal-birdView licensePNG Birds animal nature plant. https://www.rawpixel.com/image/13493212/png-birds-animal-nature-plantView licenseThree white, black, and blue birds perched around a nest on a twisted, weathered pink trunk; pine foliage extends upward and… https://www.rawpixel.com/image/7637179/image-art-vintage-treeFree Image from public domain licenseBirds in the jungle chinese brush painting outdoors animal. https://www.rawpixel.com/image/13861226/birds-the-jungle-chinese-brush-painting-outdoors-animalView licenseBirds animal nature plant. https://www.rawpixel.com/image/13322122/birds-animal-nature-plantView licensePNG Cow livestock cartoon animal. AI generated Image by rawpixel. https://www.rawpixel.com/image/12230848/png-white-backgroundView licenseFlying swallow birds, vintage animal illustration by Nampei. Remixed by rawpixel. https://www.rawpixel.com/image/10169411/image-flower-art-vintageView licensetwo birds fighting on a plum tree branch, Sotheby's, NY Lot 27. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7651542/image-vintage-art-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