A mute swan (cygnus olor) flies on a pond at the nature reservation “Wagbachniederung” in Waghaeusel, near Karlsruhe, Germany, 01 July 2019. The Wagbachniederung is an important breeding and resting place for breeding birds in Europe, which are endangered by extinction, and is one of the most important bird protection areas in Germany. (Photo by Ronald Wittek/EPA/EFE/Rex Features/Shutterstock)
