Dansk: Illustration fra Niels Holgersens vidunderlige Rejse gennem Sverige side 324 af svanerne i Hjästaviken
English: Illustration from a Danish translation of Nils Holgerssons underbara resa genom Sverige, p. 324, depicting the swans in Hjälstaviken.
Date 1910
Source Selma Lagerlöf (1910) Niels Holgersens vidunderlige Rejse gennem Sverige, translated by Ida Falbe-Hansen (1849–1922). Copenhagen: Gyldendalske Boghandel, Nordisk Forlag.
Author Oscar Bojesen (1879–1930)
Source: https://commons.wikimedia.org/wiki/File:Niels_Holgersens_vidunderlige_Rejse_side_324_-_Svanerne_i_Hj%C3%A4lstaviken.png

The mute swan (Cygnus olor) is a species of swan and a member of the waterfowl family Anatidae. Cygnus olor is native to much of Eurasia, and (as a rare winter visitor) the far north of Africa. Cygnus olor is an introduced species in North America, Australasia and southern Africa. The name 'mute' derives from it being less vocal than other swan species.