Parasitic Jaeger

Stercorarius parasiticus

Order

CHARADRIIFORMES

Family

Skuas and Jaegers (Stercorariidae)

Code 4

PAJA

Code 6

STEPAS

ITIS

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ILLUSTRATION

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PHOTOS

CONSERVATION STATUS

Least Concern

The Parasitic Jaeger has a tremendous range with an estimated extent of 10,000,000 square kilometers. This bird can be found in native populations on all inhabited continents and many island groups as well as vagrant populations in locations that include Antarctica. Its preferred habitat is grasslands and tundra or marine environments and estuaries. The global population of this species is estimated to be around 500,000 to 1,000,000 individuals. Currently, it is not believed that the population trends for this species will soon approach the minimum levels that could suggest a potential decline in population. Due to this, population trends for the Parasitic Jaeger have a present evaluation level of Least Concern.

IBIRD EXPLORER GENERAL

PHOTO SHARING AND DISCUSSION

BIRD PHOTOGRAPHY

SUMMARY

Overview

Parasitic Jaegar Dark Morph: This medium-sized jaeger has a brown body, darker cap and pale underwing patches near tips. Pale form has white underparts with brown breast band; intermediates between dark and light morphs occur. Diamond-shaped tail has elongated, pointed central feathers. Black bill, legs and feet. Alternates several deep flaps with glides and fast wing beats. Sexes are similar.


Range and Habitat

Parasitic Jaeger: Breeds on the coasts of Alaska, as well as coastal and inland tundra regions of northern Canada; also found in Greenland, Iceland, Scandinavia, and northern Russia. Pelagic, spending winters in warm waters from the Carolinas and California to Mexico, the West Indies, and areas south.

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SONGS AND CALLS

Voice Text

"skooo-a", "ka-aaow"

INTERESTING FACTS

  • The Parasitic Jaeger takes its name from the two main strategies it uses to acquire food. The first word of the name refers to this species’ habit of pursuing gulls and terns and forcing them to drop their food.
  • Breeding pairs defend large territories where they often cooperate in hunting birds, eggs, and rodents.
  • The second word comes from the German word for hunter, alluding to the fact that this bird will at times find its own food by preying on small birds, eggs and even small mammals.
  • A group of skuas are collectively known as a "shishkab" of skuas.

SIMILAR BIRDS

RANGE MAP

CERange Map for Parasitic Jaeger

FAMILY DESCRIPTION

TERMINOLOGY

CREDITS

Author

Gary Owen Dick

Artist

Yury Lisyak

HELP ME IDENTIFY A BIRD

BACKYARD BIRDING

BIRDS AND BIRDING

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UnderpartsX

Belly, undertail coverts, chest, flanks, and foreneck.

BreastX
The upper front part of a bird.
CapX
The area on top of the head of the bird.
PelagicX
The pelagic is a type of bird whose habitat is on the open ocean rather than in a coastal region or on inland bodies of water (lakes, rivers). An example of a pelagic bird is the blacklegged kittiwake.
UpperpartsX
Back, rump, hindneck, wings, and crown.
PrimariesX
The primaries are the flight feathers specialized for flight. They are attached to the "hand" equivalent part of the wing.
Parts of a Standing bird X
Head Feathers and Markings X
Parts of a Flying bird X