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Side-by-Side Comparison

Attribute	Arctic Jaeger	Pomarine Jaeger
Scientific Name	Stercorarius parasiticus	Stercorarius pomarinus
Order	Charadriiformes	Charadriiformes
Family	Stercorariidae	Stercorariidae
Conservation Status	Least Concern	Least Concern
Length	—	—
Wingspan	62.1 cm (24.4 in)	70.2 cm (27.6 in)
Weight	459.0 g (16.19 oz)	760.5 g (26.83 oz)
Diet	--	--
Clutch Size	1-2	2
Population Trend	—	—

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Habitat Comparison

Shared Habitats

🏖️ Coastal 🌾 Grassland

Arctic Jaeger only

None

Pomarine Jaeger only

🌿 Wetland

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Conservation Status

Least Concern

Arctic Jaeger

Least Concern

Pomarine Jaeger

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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.

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