RMPBDC4A–guano on pedalo from Black-Headed Gulls,(Chroicocephalus ridibundus), flock of mature and immature birds, Regents Park, London, United Kingdom
RMH039DC–Black-headed Gull (Chroicocephalus ridibundus), adult standing on the ground, Oulu, Northern Ostrobothnia, Finland
RMK3351F–Row of three adult black-headed gulls (Chroicocephalus ridibundus) in winter plumage perched on tree branch with blue sky in background, Derbyshire,UK
RMM1C1XW–Black-headed Gull, Chroicocephalus ridibundus, in winter plumage, Wildfowl and Wetlands Trust, Slimbridge, Gloucestershire, UK.
RM2C3MC31–Flying black headed gull, Chroicocephalus ridibundus, in spring & summer plumage.
RMPDYFE5–Common Black-headed Gull with wings raised and reflection in water; Chroicocephalus ridibundus; Kokmeeuw zwemmend met opgeheven vleugels en weerspiegeling in het water.
RF2C378CM–Laughing gull Chroicocephalus ridibundus on the Neckar in Heidelberg
RMKGK6R6–Black Headed Gulls (Chroicocephalus ridibundus) in Winter plumage perched on a fence in a field in Winter in the South of England, UK.