Stock Photo - 26 August 2018, Germany, Mennewitz: The ornithologist Ingolf Todte looks out for swallows he wants to catch with a Japanese net in the reed at the edge of a lake with binoculars at sunset. The captured animals are ringed by the conservationist and released after being ringed. The ringing of migratory birds is used for research and provides information on migratory behaviour and life expectancy, as the birds can be identified time and again. In addition to ringing, the animals are measured and weighed and examined for possible parasites. The ringing ends in September when the migratory birds leave for their winter quarters. Photo: Klaus-Dietmar Gabbert/dpa-Zentralbild/dpa. - Mennewitz/Saxony/Germany