Black alder (Alnus glutinosa) carr swamp forest edge in early spring, Biebrza National Park, Podlaskie, Poland.
Starlings (Sturnus vulgaris), flock on black alder (Alnus glutinosa), backlight in front of setting sun, Duemmerniederung, Lower Saxony, Germany, Europe
Sunset above donau river with common alder (Alnus glutinosa) trees, Upper Palatinate, Bavaria, Germany, Europe
