Foto de stock - 14 May 2019, Schleswig-Holstein, Helgoland: Katharina von Runnen, station assistant at the Institute for Bird Research, has captured a wagtail. The IfV was founded as ""Vogelwarte Helgoland"" on 1 April 1910 within the Prussian Biological Institute on Helgoland. In the meantime about one million migratory birds have been captured and ringed here. Photo: Carsten Rehder/dpa. - Helgoland/Schleswig-Holstein/Germany

Imagen: 14 May 2019, Schleswig-Holstein, Helgoland: Katharina von Runnen, station assistant at the Institute for Bird Research, has captured a wagtail.

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