little-W | Studying gulls:
Black-headed Gull, 1cy, M[Helsinki ST290.408]
little-W | Studying gulls:
Black-headed Gull, 1cy, W[E5ZZ]
little-W | Studying gulls:
Black-headed Gull, 1cy, W[H-H]
little-W | Studying gulls:
Black-headed Gull, 1cy, W[E5SL]
little-W | Studying gulls:
Black-headed Gull, 1cy, W[E5TL]
little-W | Studying gulls:
Black-headed Gull, 1cy, W[E5VA]
little-W | Studying gulls:
Black-headed Gulls, 1cy, W[E5MY] and W[E5VA]
little-W | Studying gulls:
Black-headed Gull, gray hind-neck
little-W | Studying gulls:
Black-headed Gull, 1cy, W[E5TC]
little-W | Studying gulls:
Black-headed Gull, 1cy, brown neck markings
little-W | Studying gulls:
Black-headed Gull, 1cy, M[Arnhem 3722xxx]
little-W | Studying gulls:
Black-headed Gull, 1cy, W[E4KP]
little-W | Studying gulls:
Black-headed Gull, 1cy, W[E4KP]
little-W | Studying gulls:
Black-headed Gull, 1cy, W[E5RM]
little-W | Studying gulls:
Black-headed Gull, 1cy, W[E5RM]
little-W | Studying gulls:
Black-headed Gull, juvenile W[E5LU]
little-W | Studying gulls:
Black-headed Gull, juvenile W[E5LU]
little-W | Studying gulls:
Black-headed Gulls, W[E5NX], W[E5NY], W[E5EL]
little-W | Studying gulls:
Black-headed Gulls
little-W | Studying gulls:
Black-headed Gull 1cy
little-W | Studying gulls:
Black-headed Gull, juvenile
little-W | Studying gulls:
Black-headed Gull, chick
little-W | Studying gulls:
Black-headed Gull, juvenile, W[E5KF]
little-W | Studying gulls:
Black-headed Gull, juvenile, W[E5PA]
little-W | Studying gulls:
Black-headed Gull, juvenile, W[E5LL]
little-W | Studying gulls:
Black-headed Gulls, juvenile
little-W | Studying gulls:
Black-headed Gull, chick
little-W | Studying gulls:
Black-headed Gull, chick
little-W | Studying gulls:
Black-headed Gull, chick
little-W | Studying gulls:
Black-headed Gull 1cy, M[Praha ES11.300]
