Arctic Jaeger vs Pomarine Jaeger
Stercorarius parasiticus comparé à Stercorarius pomarinus
Side-by-Side Comparison
| Attribut | Arctic Jaeger | Pomarine Jaeger |
|---|---|---|
| Nom scientifique | Stercorarius parasiticus | Stercorarius pomarinus |
| Ordre | Charadriiformes | Charadriiformes |
| Famille | Stercorariidae | Stercorariidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 62,1 cm (24.4 in) | 70,2 cm (27.6 in) |
| Poids | 459,0 g (16.19 oz) | 760,5 g (26.83 oz) |
| Régime alimentaire | -- | -- |
| Taille de la couvée | 1-2 | 2 |
| Population Trend | — | — |
Habitat Comparison
Statut de conservation
Least Concern
Arctic Jaeger
Least Concern
Pomarine Jaeger
About These Birds
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.
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.