Four swans, circa 1830. From left to right, the Hooper, the Mute Swan, the Polish Swan and Bewick's Swan. An engraving by Lizars from a drawing by Stewart. (Photo by Hulton Archive/Getty Images)

Four swans, circa 1830. From left to right, the Hooper, the Mute Swan, the Polish Swan and Bewick's Swan. An engraving by Lizars from a drawing by Stewart. (Photo by Hulton Archive/Getty Images)

Download this HD photo of color image, archival, white swans, and avian by Getty Images (@gettyimages)

Calendar outlinedPublished on SafetyLicensed under the Unsplash+ License