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Little Tern

From Opus

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Revision as of 00:03, 5 July 2012 (edit)
Deliatodd-18346 (Talk | contribs)
(GSearch amended to allow for both scientific names. ABID & OBI links deleted)
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==Taxonomy== ==Taxonomy==
This species was formerly placed in the genus [[:Category:Sterna|Sterna]]<br />Little Tern is closely related to, and was formerly often considered conspecific with, [[Saunders's Tern]], and with the [[Least Tern]] ''S. albifrons'' of the New World. Other close relatives include the [[Yellow-billed Tern]] ''S. superciliaris'' and [[Peruvian Tern]] ''S. lorata'', both from South America. This species was formerly placed in the genus [[:Category:Sterna|Sterna]]<br />Little Tern is closely related to, and was formerly often considered conspecific with, [[Saunders's Tern]], and with the [[Least Tern]] ''S. albifrons'' of the New World. Other close relatives include the [[Yellow-billed Tern]] ''S. superciliaris'' and [[Peruvian Tern]] ''S. lorata'', both from South America.
 +====Subspecies====
 +There are 6 subspecies<sup>[[#References|[1]]]</sup>:
 +*''S. a. albifrons'':
 +:*[[Europe]] to western [[Asia]] and west Indian Ocean; winters [[Africa]] to [[India]]
 +*''S. a. guineae'':
 +:*[[Ghana]] to [[Gabon]]
 +*''S. a. innominata'':
 +:*Islands in Persian Gulf
 +*''S. a.pusilla'':
 +:*North-eastern India, [[Sri Lanka]], [[Myanmar]] and islands off [[Sumatra]] and [[Java]]
 +*''S. a. sinensis'':
 +:*South-eastern [[Russia]] to [[Japan]], South-eastern [[Asia]], [[Philippines]] and [[New Guinea]]
 +*''S. a. placens'':
 +:*Eastern [[Australia]] and eastern [[Tasmania]]
==Habitat== ==Habitat==
Sand, gravel or shingle coasts and islands. The nesting area will most often be located close to both the sea and to fresh water, but in southern areas also found near freshwater such as rivers. Sand, gravel or shingle coasts and islands. The nesting area will most often be located close to both the sea and to fresh water, but in southern areas also found near freshwater such as rivers.
Line 18: Line 32:
==Behaviour== ==Behaviour==
====Breeding==== ====Breeding====
-1 - 3 eggs are laid on the ground. The nest is a scrape in the ground, ususally on a shingle beach. The pair take turns incubating the eggs which hatch after 18 to 21 days. Chicks start to fly after 8 to 14 days but are not fully fledged until they are 28 days old. +The 1 - 3 eggs are laid on the ground. The nest is a scrape in the ground, usually on a shingle beach. The pair take turns incubating the eggs which hatch after 18 to 21 days. Chicks start to fly after 8 to 14 days but are not fully fledged until they are 28 days old.
-Little Terns are fiercely protective of the eggs and chicks and will follow and harass any percieved predator. +
 +Little Terns are fiercely protective of the eggs and chicks and will follow and harass any perceived predator.
====Diet==== ====Diet====
It plunge-dives for fish. It plunge-dives for fish.
- +====Vocalisation====
-==Voice==+
<flashmp3>Sterna albifrons (song).mp3</flashmp3><br /> <flashmp3>Sterna albifrons (song).mp3</flashmp3><br />
''[[Media:Sterna albifrons (song).mp3|Listen in an external program]]'' ''[[Media:Sterna albifrons (song).mp3|Listen in an external program]]''
 +==References==
 +#{{Ref-Clements6thAug11}}
 +{{ref}}
==External Links== ==External Links==
{{GSearch|Stern+albifrons}} {{GSearch|Stern+albifrons}}
 +<br />
 +{{Video|Little_Tern}}
[http://www.louthnaturetrust.org Read about the Little Tern Conservation Project at Baltray, Co. Louth, Ireland and view photographs on the Gallery] [http://www.louthnaturetrust.org Read about the Little Tern Conservation Project at Baltray, Co. Louth, Ireland and view photographs on the Gallery]
-[[Category:Birds]][[Category:Sterna]] [[Category:Sternula]]+[[Category:Birds]][[Category:Sterna]] [[Category:Sternula]] [[Category:Videos]]

Revision as of 00:17, 5 July 2012

Photo by soenke in Baltic Sea near German coast
Photo by soenke
in Baltic Sea near German coast
Sternula albifrons

Sterna albifrons

Contents

Identification

L. 21-25 cm Ws. 41-47 cm

  • Yellow bill with black tip
  • Yellow legs

Distribution

Europe and Asia; strongly migratory.

Taxonomy

This species was formerly placed in the genus Sterna
Little Tern is closely related to, and was formerly often considered conspecific with, Saunders's Tern, and with the Least Tern S. albifrons of the New World. Other close relatives include the Yellow-billed Tern S. superciliaris and Peruvian Tern S. lorata, both from South America.

Subspecies

There are 6 subspecies[1]:

  • S. a. albifrons:
  • S. a. guineae:
  • S. a. innominata:
  • Islands in Persian Gulf
  • S. a.pusilla:
  • S. a. sinensis:
  • S. a. placens:

Habitat

Sand, gravel or shingle coasts and islands. The nesting area will most often be located close to both the sea and to fresh water, but in southern areas also found near freshwater such as rivers.

Behaviour

Breeding

The 1 - 3 eggs are laid on the ground. The nest is a scrape in the ground, usually on a shingle beach. The pair take turns incubating the eggs which hatch after 18 to 21 days. Chicks start to fly after 8 to 14 days but are not fully fledged until they are 28 days old.

Little Terns are fiercely protective of the eggs and chicks and will follow and harass any perceived predator.

Diet

It plunge-dives for fish.

Vocalisation


Listen in an external program

References

  1. Clements, JF. 2011. The Clements Checklist of Birds of the World. 6th ed., with updates to August 2011. Ithaca: Cornell Univ. Press. ISBN 978-0801445019. Spreadsheet available at http://www.birds.cornell.edu/clementschecklist/downloadable-clements-checklist

External Links


Read about the Little Tern Conservation Project at Baltray, Co. Louth, Ireland and view photographs on the Gallery

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