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Northern Germany, Schleswig-Holstein, Schenefeld near Hamburg, hedge with a drainage ditch between a playground and a field of a nursery school for trees, grown up with bushes like Corylus, Acer sp, Salix and other, at a leaf of Prunus sp., 7th of May 2019, Outdoorphotos: kuv.
Please help me to get the ID (I know it's very difficult).
Kuv
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