Photo, picture:
Lachmoewen sind nach 2 Lebensjahren ausgewachsen - (Foto Lachmoewe Altvogel in der Brutkolonie)
Black-headed Gull takes two years to reach maturity - (Common Black-headed Gull - Photo Black-headed Gull adult bird in the breeding colony)
Chroicocephalus ridibundus - (Larus ridibundus)

Gallery overview