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Antarctic Tern

From Opus

Breeding adult, subspecies tristanensis. Photo © by Joseph MorlanEdinburgh of the Seven Seas, Tristan da Cunha, SH. 13 March 2018.
Breeding adult, subspecies tristanensis.
Photo © by Joseph Morlan
Edinburgh of the Seven Seas, Tristan da Cunha, SH. 13 March 2018.
Sterna vittata

Contents

[edit] Identification

31-38 cm.

  • Pale grey and white
  • Black cap when breeding otherwise streaked with white
  • Greyish black wing tips
  • Dark red or blackish bill.

Juveniles:belly, foreneck, forehead, and breast are white. Grey back, black bill, orange-red legs and feet.

[edit] Distribution

Adult, subspecies georgiaePhoto © by Clark Dave ClarkGodthul on South Georgia Island, January 2012
Adult, subspecies georgiae
Photo © by Clark Dave Clark
Godthul on South Georgia Island, January 2012

Southern Oceans.

[edit] Taxonomy

[edit] Subspecies

There are 6 subspecies[1]:

  • S. v. tristanensis:
  • Tristan da Cunha, Gough Island; Amsterdam Island and (possibly) St. Paul Island
  • S. v. georgiae:
  • South Georgia Island; possibly South Orkney and South Sandwich islands
  • S. v. gaini:
  • South Shetland Islands
  • S. v. vittata:
  • Prince Edward, Marion, Crozet and Kerguelen islands
Juvenile, subspecies tristanensis. Photo © by Joseph MorlanEdinburgh of the Seven Seas, Tristan da Cunha, SH. 13 March 2018.
Juvenile, subspecies tristanensis.
Photo © by Joseph Morlan
Edinburgh of the Seven Seas, Tristan da Cunha, SH. 13 March 2018.
  • S. v. bethunei:
  • Stewart, Snares, Auckland, Bounty, Antipodes, Campbell islands
  • S. v. macquariensis:
  • Macquarie Island

S. v. macquariensis is not recognised by all authorities[2]

Coasts and sea.

[edit] Behaviour

[edit] Diet

The diet includes fish.

[edit] Breeding

Up to 3 eggs are laid in a shallow pebble-or shell-lined scrape on the ground, between October and January.

[edit] Habitat

[edit] References

  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2017. The eBird/Clements checklist of birds of the world: v2017, with updates to August 2017. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
  2. Gochfeld, M., Burger, J. & Garcia, E.F.J. (2018). Antarctic Tern (Sterna vittata). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/54027 on 13 June 2018).
  3. Higgins, P.J.; Davies, S.J.J.F. (Eds.) 1996. Handbook of Australian, New Zealand and Antarctic birds. Vol. 3. Snipe to Pigeons. Oxford University Press: Melbourne
  4. Jaramillo, A. 2003. Birds of Chile. Princeton & Oxford: Princeton Univ. Press. ISBN 978-0691117409
  5. Sagar, P.M. 2013. Antarctic tern. In Miskelly, C.M. (ed.) New Zealand Birds Online. http://www.nzbirdsonline.org.nz
  6. Shirihai, H. 2008. Complete Guide to Antarctic Wildlife: Birds and Marine Mammals of the Antarctic Continent and the Southern Ocean. Princeton & Oxford: Princeton Univ. Press. ISBN 978-0691136660
  7. Avibase
  8. Wikipedia

[edit] External Links

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