South Polar Skua vs Pomarine Jaeger
Catharacta maccormicki в сравнении с Stercorarius pomarinus
Side-by-Side Comparison
| Характеристика | South Polar Skua | Pomarine Jaeger |
|---|---|---|
| Научное название | Catharacta maccormicki | Stercorarius pomarinus |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Stercorariidae | Stercorariidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 77,4 cm (30.5 in) | 70,2 cm (27.6 in) |
| Масса | 1315,0 g (46.39 oz) | 760,5 g (26.83 oz) |
| Питание | -- | -- |
| Размер кладки | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
South Polar Skua only
Нет
Pomarine Jaeger only
Охранный статус
Least Concern
South Polar Skua
Least Concern
Pomarine 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.
Pomarine Jaeger
Pomarine Jaeger, 46–51 cm plus twisted spoon-shaped central tail feathers, is the largest of the three small jaegers. Breeds on Russian and Canadian Arctic tundra; lemming-dependent on breeding grounds. Heavily built; pirates food from other seabirds at sea and scavenges at whale carcasses. Pelagic in winter.