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A Swiss Braunvieh cow wearing a cowbell in a field below Fuorcia Sesvenna in the Engadin, Switzerland: photo by Daniel Schwen, 26 July 2007
A domestic sow and her piglet: photo by Scott Bauer, 2007 (U.S. Department of Agriculture)
A cow feeding on birdsfoot trefoil: photographer unknown, n.d. (U.S. Department of Agriculture)
Alte Schweinerasse im Hessenpark der Waldweide: photo by Karsten11, 1 May 2009
Vache d'Abondance: photo by Utilisateur:²°¹°°, 2006
The only free pig in Iowa: photo by Philip Capper, 24 March 2005
i.m. Max Heinegg (1911-1995)
