little-W | Studying gulls:
Black-headed Gull, 2cy, W[E0TA]
little-W | Studying gulls:
Black-headed Gull, 2cy, W[E0TZ]
little-W | Studying gulls:
Black-headed Gull, 13cy, W[E0TV]
little-W | Studying gulls:
Black-headed Gull, >2cy, W[E0TE]
little-W | Studying gulls:
Black-headed Gull, >2cy, W[E0TC]
little-W | Studying gulls:
Black-headed Gull, 24cy, M[Arnhem 3431.752]
little-W | Studying gulls:
Aluminum ring Arnhem 3431.752
little-W | Studying gulls:
Black-headed Gull, 24cy, W[E0TU]
little-W | Studying gulls:
Black-headed Gull, 24cy, W[E0TU]
little-W | Studying gulls:
Black-headed Gull, 24cy, W[E0TU]
little-W | Studying gulls:
Black-headed Gull, 24cy, W[E0TU]
little-W | Studying gulls:
Black-headed Gull, 3cy, M[Moskva PS009035]
little-W | Studying gulls:
Black-headed Gull, >6cy, M[Hiddensee IA114104]
little-W | Studying gulls:
Black-headed Gull, >3cy, W[E5RE]
little-W | Studying gulls:
Black-headed Gull, adult, early head moult
little-W | Studying gulls:
Black-headed Gull, 3cy, M[Helsinki ST217.742]
little-W | Studying gulls:
Black-headed Gull, adult, W[TC69]
little-W | Studying gulls:
Black-headed Gull, adult, M[Helsinki ST240.846]
little-W | Studying gulls:
Black-headed Gull, 3cy, M[Lithuania HA06701]
little-W | Studying gulls:
Black-headed Gull, adult, W[E5RE]
little-W | Studying gulls:
Black-headed Gull, adult, W[TC69]
little-W | Studying gulls:
Black-headed Gull, adult, W[E5JE]
little-W | Studying gulls:
Black-headed Gull, >2cy, R[U.K]
little-W | Studying gulls:
Black-headed Gull, 12cy, M[Stockholm 6171445]
little-W | Studying gulls:
Black-headed Gull, adult, active head moult in winter
little-W | Studying gulls:
Black-headed Gull, adult, W[E5RE]
little-W | Studying gulls:
Black-headed Gull, adult, M[Bruxelles 7T88865]
little-W | Studying gulls:
Black-headed Gull, adult, leucistic
little-W | Studying gulls:
Black-headed Gull, gray hind-neck
little-W | Studying gulls:
Black-headed Gull, gray hind-neck
