little-W | Studying gulls:
Black-headed Gull, >3cy, pink underparts
little-W | Studying gulls:
Black-headed Gull, adult, pink body
little-W | Studying gulls:
Black-headed Gull, adult, active head moult and pink body
little-W | Studying gulls:
Black-headed Gull, adult, leucistic
little-W | Studying gulls:
Black-headed Gull, adult, leucistic
little-W | Studying gulls:
Black-headed Gull, adult, partly leucistic
little-W | Studying gulls:
Black-headed Gull, adult
little-W | Studying gulls:
Black-headed Gull, adult