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Pomarine Jaeger

From Opus

Photo © by postcardcv Salthouse, Norfolk, England, November 2007
Photo © by postcardcv
Salthouse, Norfolk, England, November 2007

Alternative Name: Pomarine Skua

Stercorarius pomarinus

Contents

[edit] Identification

53cm including 8cm tail projection of broad twisted streamers

Dark phasedPhoto © by IanF North Gare, Seaton Carew, Cleveland, UK, November 2007
Dark phased
Photo © by IanF North Gare, Seaton Carew, Cleveland, UK, November 2007

Pale Adult

  • Black cap
  • Dark upper parts
  • White underneath with brown breast band and flank bars
  • White flash on outer wing

Dark Adult all dusky-brown body
Juveniles and immature variably mottled buff/brown

[edit] Similar Species

[edit] Distribution

Far north of Eurasia and North America. It is a migrant, wintering at sea in the tropical oceans.

[edit] Taxonomy

This is a monotypic species[1].

First year birdPhoto © by storenstenOberkirch, Switzerland, December 2010
First year bird
Photo © by storensten
Oberkirch, Switzerland, December 2010

[edit] Habitat

It nests on arctic tundra and islands

[edit] Behaviour

[edit] Breeding

It lays 2-3 olive-brown eggs in grass lined depressions.

[edit] Diet

Its diet includes lemmings and other rodents on the breeding grounds.

It will also kill birds up to the size of Common Gull.

[edit] Vocalisation


Listen in an external program

[edit] References

  1. Clements, JF. 2010. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2010. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/Clements%206.5.xls/view
  2. Wikipedia
  3. Birdwatchers Pocket Guide ISBN 1-85732-804-3
  4. Collins Pocket Guide to British Birds 1966
  5. Collins Field Guid 5th Edition

[edit] External Links


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