"Black-headed Gull (Larus ridibundus, Chroicocephalus ridibundus), perched on the railing of Prerow Pier, Mecklenburg-Western Pomerania, Germany, Europe"

"Black-headed Gull (Larus ridibundus, Chroicocephalus ridibundus) standing with spread wings on a railing, Mecklenburg-Western Pomerania, Germany, Europe"

"Black-headed gulls (Larus ridibundus, Chroicocephalus ridibundus) standing on a railing and starting, Mecklenburg-Western Pomerania, Germany, Europe"

"Black-headed Gulls (Larus ridibundus, Chroicocephalus ridibundus), perched on a handrail of Prerow Pier, Mecklenburg-Western Pomerania, Germany, Europe"

"Black-headed gulls (Larus ridibundus, Chroicocephalus ridibundus) and herring gulls (Larus argentatus) on a Baltic Sea beach, Mecklenburg-Western Pomerania, Germany, Europe"

"Black-headed gull (Larus ridibundus), in non-breeding plumage, in flight, Bavaria, Germany, Europe"

"Black-headed gull (Larus ridibundus), in non-breeding plumage, in flight, Bavaria, Germany, Europe"

Black-headed gull (Chroicocephalus ridibundus) in water, Chiemsee, Bavaria, Germany, Europe

"Black-headed Gulls (Chroicocephalus ridibundus) in flight, Schleswig-Holstein, Germany, Europe"

"Black-headed Gull (Chroicocephalus ridibundus, formerly Larus ridibundus), in flight, East Frisian Islands, East Frisia, Lower Saxony, Germany, Europe"

Black-headed gull (Chroicocephalus ridibundus) on a Baltic Sea beach, Mecklenburg-Western Pomerania, Germany, Europe

"Black-headed Gull (Chroicocephalus ridibundus, formerly Larus ridibundus), in flight, East Frisian Islands, East Frisia, Lower Saxony, Germany, Europe"

"Black-headed Gull (Chroicocephalus ridibundus) standing on the beach, Bansin, Usedom, Mecklenburg-Western Pomerania, Germany, Europe"

"Common Black-headed Gull (Chroicocephalus ridibundus), in flight, Lake Zug, Switzerland, Europe"

"Black-headed Gull (Chroicocephalus ridibundus, formerly Larus ridibundus), East Frisian Islands, East Frisia, Lower Saxony, Germany, Europe"

"Black-headed Gull (Chroicocephalus ridibundus, formerly Larus ridibundus), East Frisian Islands, East Frisia, Lower Saxony, Germany, Europe"

"Black-headed Gull (Larus ridibundus), in flight, Texel, North Holland, The Netherlands, Europe"

"Black-headed Gull (Larus ridibundus, Chroicocephalus ridibundus) in flight, Mecklenburg-Vorpommern, Germany, Europe"