A bluethroat (Luscinia svecica) sings in the nature reservation Wagbachniederung in Waghaeusel, near Karlsruhe, Germany, 09 April 2020. The Wagbachniederung is an important breeding and resting place in Europe for breeding birds, which are endangered by extinction, and is one of the most important bird protection areas in Germany. (Photo by Ronald Wittek/EPA/EFE)
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