051 Stercorariidae – SkuasGallery Bird families 051 Stercorariidae - SkuasStercorarius longicaudatus – Long-tailed Skua (Spitsbergen – Norway) Stercorarius parasiticus – Arctic Skua (Spitsbergen – Norway) Stercorarius maccormicki – South Polar Skua (Antarctica) Stercorarius antarcticus lonnbergi – Lönnberg’s Skua (Antarctica)
