Species shown in descending chronological order:-
Great Skua (Stercorarius skua) – Audenshaw Reservoirs, Greater Manchester, 4th October 2013
Arctic Skua (Stercorarius parasiticus) – Svalbard, 30th June 2009
Chilean Skua (Stercorarius chilensis) – Beagle Channel, Ushuaia, Argentina, December 2003
South Polar Skua (Stercorarius maccormicki) – Whalers Bay and Yankee Harbour, Antarctica, 20th December 2003
Southern Skua (Stercorarius antarctica) – Aitchoo Island, Antarctica, 19th December 2003