Chilean Skua vs Arctic Jaeger

Catharacta chilensis compared with Stercorarius parasiticus

Side-by-Side Comparison

Attribute Chilean Skua Arctic Jaeger
Scientific Name Catharacta chilensis Stercorarius parasiticus
Order Charadriiformes Charadriiformes
Family Stercorariidae Stercorariidae
Conservation Status Least Concern Least Concern
Length
Wingspan 75.9 cm (29.9 in) 62.1 cm (24.4 in)
Weight 1387.5 g (48.94 oz) 459.0 g (16.19 oz)
Diet -- --
Clutch Size 1-2 1-2
Population Trend

Habitat Comparison

Shared Habitats

Chilean Skua only

None

Arctic Jaeger only

Conservation Status

Least Concern

Chilean Skua

Least Concern

Arctic Jaeger

About These Birds

Chilean Skua

Chilean Skua, 52–58 cm, is a large, heavily built skua of southernmost South America and Cape Horn islands. Warm reddish-brown tones, pale face. Predator and scavenger at penguin and cormorant colonies; piracy also common. Partially migratory; winters at sea in the Pacific and Atlantic.

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.

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