South Polar Skua vs Arctic Jaeger
Catharacta maccormicki so với Stercorarius parasiticus
Side-by-Side Comparison
| Thuộc Tính | South Polar Skua | Arctic Jaeger |
|---|---|---|
| Tên Khoa Học | Catharacta maccormicki | Stercorarius parasiticus |
| Bộ | Charadriiformes | Charadriiformes |
| Họ | Stercorariidae | Stercorariidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 77,4 cm (30.5 in) | 62,1 cm (24.4 in) |
| Khối Lượng | 1315,0 g (46.39 oz) | 459,0 g (16.19 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Tình Trạng Bảo Tồn
Least Concern
South Polar Skua
Least Concern
Arctic Jaeger
About These Birds
South Polar Skua
South Polar Skua, 50–55 cm, breeds on the Antarctic continent — one of the world's most southerly breeding birds, recorded at the South Pole. Strong migratory; winters in the North Pacific and North Atlantic, crossing the equator. Polymorphic; feeds on penguins, fish, and krill. Circumglobal migration.
Arctic Jaeger
Arctic Jaeger (Parasitic Jaeger), 41–46 cm plus tail, is the commonest jaeger, breeding across Arctic tundra and wintering in tropical and subtropical seas. Highly piratical; pursues terns and gulls relentlessly to steal fish. Polymorphic: pale and dark morphs occur. Circumglobal migration through all oceans.