Halvard Aas Midtun:
Chroicocephalus cirrocephalus poiocephalus (Grey Headed Gull)
Halvard Aas Midtun:
Chroicocephalus ridibundus (Black-headed Gull)
Halvard Aas Midtun:
Chroicocephalus ridibundus (Black-headed Gull)
Halvard Aas Midtun:
Hydroprogne caspia (Caspian Tern)
Halvard Aas Midtun:
Hydroprogne caspia (Caspian Tern)
Halvard Aas Midtun:
Ichthyaetus leucophthalamus (White-eyed Gull)
Halvard Aas Midtun:
Ichthyaetus leucophthalamus (White-eyed Gull)
Halvard Aas Midtun:
Larus argentatus argentatus (European Herring Gull)
Halvard Aas Midtun:
Larus argentatus argentatus (European Herring Gull)
Halvard Aas Midtun:
Larus argentatus argentatus (European Herring Gull)
Halvard Aas Midtun:
Larus argentatus argentatus (Herring Gull)
Halvard Aas Midtun:
Larus canus canus (Mew Gull)
Halvard Aas Midtun:
Larus fuscus (Lesser Black-backed Gull)
Halvard Aas Midtun:
Larus hyperboreus (Glaucous Gull)
Halvard Aas Midtun:
Larus hyperboreus (Glaucous Gull)
Halvard Aas Midtun:
Larus marinus (Great Black-backed Gull)
Halvard Aas Midtun:
Larus marinus (Great Black-backed Gull)
Halvard Aas Midtun:
Rissa tridactyla tridactyla (Black Legged Kittiwake)
Halvard Aas Midtun:
Rissa tridactyla tridactyla (Black Legged Kittiwake)
Halvard Aas Midtun:
Rissa tridactyla tridactyla (Black Legged Kittiwake)
Halvard Aas Midtun:
Sterna hirundo hirundo (Common Tern)
Halvard Aas Midtun:
Sterna hirundo hirundo (Common Tern)
Halvard Aas Midtun:
Sterna hirundo hirundo (Common Tern)
Halvard Aas Midtun:
Sterna hirundo hirundo (Common Tern)
Halvard Aas Midtun:
Sterna sumatrana mathewsi (Black-naped Tern)
Halvard Aas Midtun:
Thalasseus bengalensis bengalensis (Lesser Crested Tern)
Halvard Aas Midtun:
Xema sabini sabini (Sabine's Gull)