Arctic Skua or Parasitic Jaeger (Stercorarius parasiticus) - Birds Around Me 0278

The Arctic Skua, also known as the Parasitic Jaeger (Stercorarius parasiticus), is a bold and acrobatic seabird of the northern hemisphere. Measuring 41–46 cm in length with a wingspan of 107–125 cm, it is medium‑sized among the skua family (Stercorariidae). Its plumage varies widely, with light, dark, and intermediate morphs, making identification a challenge for birdwatchers.  

Arctic Skua or Parasitic Jaeger  (Stercorarius parasiticus)
Iceland, July 2025

This species breeds across the Arctic tundra and northern coasts, including regions of Scandinavia, Scotland, Iceland, Greenland, northern Canada, Alaska, and Siberia. Nests are simple scrapes on the ground, where 1–2 eggs are laid. After breeding, Arctic Skuas migrate long distances, wintering across the southern hemisphere oceans, from South America to Africa and Australasia.  

Arctic Skua or Parasitic Jaeger  (Stercorarius parasiticus)
Iceland, July 2025

The Arctic Skua is famous for its kleptoparasitic lifestyle. Rather than catching fish directly, it often harasses other seabirds such as terns and gulls, forcing them to drop their catch mid‑air. Agile and aggressive, it chases relentlessly until the victim surrenders its food. This behavior gives rise to the name “parasitic jaeger.” However, they also hunt independently, feeding on small birds, eggs, insects, and fish.  

Despite their fierce reputation, Arctic Skuas are elegant fliers, capable of swift, twisting aerial maneuvers. They can live up to 30 years, embodying resilience in harsh environments.  

Globally, the species is listed as Least Concern, with an estimated population of 400,000–600,000 mature individuals, though in Europe it is considered endangered due to habitat loss and climate pressures.  

For birdwatchers, the Arctic Skua is a thrilling sight—an aerial pirate whose daring chases and varied plumage make it one of the most captivating seabirds of the north.  

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Arctic Skua or Parasitic Jaeger  (Stercorarius parasiticus)
Iceland, July 2025

Arctic Skua or Parasitic Jaeger  (Stercorarius parasiticus)
Iceland, July 2025