little-W | Studying gulls:
Black-headed Gull, M[Arnhem 3618181]
little-W | Studying gulls:
Black-headed Gull, adult
little-W | Studying gulls:
Mediterranean Gull, adult, W[3J84]
little-W | Studying gulls:
Mediterranean Gull, 1cy, G[R29L]
little-W | Studying gulls:
Black-headed Gulls
little-W | Studying gulls:
European Herring Gull, adult, BK[D]G[A]
little-W | Studying gulls:
Iceland Gull, 3cy
little-W | Studying gulls:
Black-legged Kittiwake, 2cy
little-W | Studying gulls:
Black-legged Kittiwake, 2cy
little-W | Studying gulls:
European Herring Gull, B[F.CAV], 4cy
little-W | Studying gulls:
Lesser Black-backed Gull (L.f. graellsii), 13cy, G[RC3]
little-W | Studying gulls:
Black-headed Gull, adult
little-W | Studying gulls:
Glaucous Gull, 1cy
little-W | Studying gulls:
Common Gull, adult, winter plumage
little-W | Studying gulls:
European Herring Gull, adult, yawning
little-W | Studying gulls:
Lesser Black-backed Gull (L.f. graellsii), dirty plumage
little-W | Studying gulls:
European Herring Gull, >5cy, M[Arnhem 5425481]
little-W | Studying gulls:
European Herring Gull, 1cy, leucistic (brown abbaration)
little-W | Studying gulls:
Black-headed Gull, >6cy, W[E5CR]
little-W | Studying gulls:
Common Gull, adult with dark head streaking
little-W | Studying gulls:
Black-headed Gull, >3cy, W[EJH2]
little-W | Studying gulls:
Kleptoparasitic behavior in Black-headed Gulls towards Sanderlings
little-W | Studying gulls:
Adult Slaty-backed Gull - 20140214
little-W | Studying gulls:
Adult Herring Gull Green YBRB – 20160704
little-W | Studying gulls:
1CY Caspian Gull – 20161014
little-W | Studying gulls:
2CY Caspian Gull – 20170212
little-W | Studying gulls:
Chick predation by adult Lesser Black-backed Gull – 20170612
little-W | Studying gulls:
Chick predation by adult Lesser Black-backed Gull – 20170612