Ole Jorgen Liodden / Arctic skua (Stercorarius parasiticus) in flight, Svalbard, Norway, August.

Staffan Widstrand / Polar Bear (Ursus maritimus) mobbed by possibly a Skua, Svalbard, Norway, July

Loic Poidevin / Arctic Skua (Stercorarius parasiticus) calling. Handa Island, Scotland, June.

Ole Jorgen Liodden / Pomarine Skua / Jaeger (Stercorarius pomarinus) in flight. Nordaustlandet, Svalbard, September.

Andrew Parkinson / Arctic Skua (Stercorarius parasiticus) in flight, stealing fish from Arctic Tern (Sterna paradisaea). Shetland Islands, Scotland, UK, July. (non-ex)

Andrew Parkinson / Arctic Tern (Sterna paradisaea) in flight chasing Arctic Skua (Stercorarius parasiticus) that has stolen its food. Scotland, UK, July. (non-ex)

Andrew Parkinson / Arctic Skua (Stercorarius parasiticus) pair stealing fish from Arctic Tern (Sterna paradisaea) Shetland Islands, Scotland, UK, July. (non-ex)

Andrew Parkinson / Arctic Skua (Stercorarius parasiticus) pair stealing fish from Arctic Tern (Sterna paradisaea) in flight, Shetland Islands, Scotland, UK, July. (non-ex)

Andrew Parkinson / Arctic Skua (Stercorarius parasiticus) pair almost colliding in flight, as they pursue an Arctic Tern (Sterna paradisaea). Shetland Islands, Scotland, UK, July. (non-ex)

Wild Wonders of Europe / de la Lez / Arctic skua (Stercorarius parasiticus) portrait, Bjrndalen, Svalbard, Norway, July 2008

Wild Wonders of Europe / de la Lez / Arctic skua (Stercorarius parasiticus) chick walking, Bjrndalen, Svalbard, Norway, July 2008

Wild Wonders of Europe / de la Lez / Arctic skua (Stercorarius parasiticus) head portrait, Bjrndalen, Svalbard, Norway, July 2008