Black-headed Gull (Chroicocephalus ridibundus), side view of an adult in winter plumage standing on the shore, Campania, Italy

larus ridibundus chroicocephalus ridibundus natural area autumn sunrise adult alone posing reflection day temperate sea black headed gull chroicocephalus ridibundus wintry livery morning sand shore least concern october campania water surface tyrrhenian sea nobody chroicocephalus nature natural areas ecosystem ecosystems fall season sunrises adults single lonely only solo one lone posed pose settlings settling reflections mirror image reflected reflecting days daytime temperate seas temperate ocean temperate oceans black headed gulls larus ridibundus winter livery wintry coat wintry plumage winter coat winter plumage winter liveries winter coats wintry coats winter plumages wintry plumages wintry liveries dawn daybreak daybreaks mornings day rise cockcrow sandy shore sand shores sandy shores least concern species water surfaces watersurface watersurfaces with nobody naturalness area temperate season seasons atmosphere sun space stage of development individual enumeration light effect atmosphere ambiance sea marine area seagull larus sp seagull sea bird bird wild animal livery morphology zoology morphology organism twilight strand low risk iucn) lr iucn red list of threatened species species italy european union europe water matter matter substance mediterranean sea world sea and ocean laridae charadriiformes aves tetrapoda vertebrata chordata deuterostomia coelomata bilateria metazoa opisthokonta eukaryota