Arctic Jaeger (species: Stercorarius parasiticus) in Birds of Nicaragua (Gaia Guide)
Stercorarius parasiticus
Arctic Jaeger

©Andreas Trepte: Arctic Jaeger (Stercorarius parasiticus)

©Tim Bowman: Arctic Jaeger (Stercorarius parasiticus)

©Cláudio Dias Timm: Juvenile Arctic Jaeger (Stercorarius parasiticus)
Kingdom Animalia
Phylum Chordata
Class Aves
Order Charadriiformes
Family Stercorcariidae
Genus Stercorarius
Species Stercorarius parasiticus
Status least concern



Distinguishing features

Light morph adults have a brown back, mainly white underparts and dark primary wing feathers with a white "flash". The head and neck are yellowish-white with a black cap and there is a pointed central tail projection, the tail streamers.  In breeding birds these can be around 7 cm in length.

Dark morph adults are dark brown, and intermediate phase birds are dark with somewhat paler underparts, head and neck. All morphs have the white wing flash.

Juveniles are difficult to separate from Long-tailed Jaeger. They are bulkier, shorter-winged, and less tern-like than that species, but show the same wide range of plumage variation. The flight is more falcon-like. However, they are usually warmer toned with browner shades, rather than grey. (Wikipedia)


  • From 41 cm to 48 cm (Length of specimen) - applies to Adults


  • From 107 cm to 125 cm - applies to Adults



©Atlas of Living Australia: Australian distribution: Arctic Jaeger (Stercorarius parasiticus)

Distribution and habitat preferences

This species breeds in the north of Eurasia and North America, with significant populations as far south as northern Scotland. It is a migrant, wintering at sea in the tropics and southern oceans.  It is a visitor to Austalia. (Wikipedia)

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