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 LC    White Tern* Id (Atlas): 972
    Gygis alba Vagrant

Description (9)
Image of White Tern
 

Other Names (World)
Common White Tern, White-Tern, Common White-Tern, Fairy Tern, Common Fairy-Tern, Little Fairy-Tern, Atlantic Fairy-Tern, Cocos Fairy-Tern, White Noddy, Love Tern, Lover Tern, Pacific Tern, White Bird

Family
Laridae (Gulls, Terns, Skimmers)

Size
28 - 33 cm

First Described (Guide)
(Sparrman, 1786)

Derivation
Gy-gis - Gk, gugës, a waterbird: al'-ba - L., albus, white

Abundance (Guide)
LC - V

Rare in eastern Australia, common at breeding colonies on Norfolk and Lord Howe Islands.

Habitat
Sub-tropical and tropical sea, usually far from land except during the beeding season. Forages over lagoons and reefs, during breeding season.

Range (Guide)
American Samoa, Australia, Bangladesh, Brazil, British Indian Ocean Territory (B), Chile, China (mainland), Cocos (Keeling) Islands (B), Colombia, Comoros, Cook Islands, Costa Rica, Fiji, French Polynesia, Guam (B), India, Indonesia, Japan, Kiribati, Maldives, Marshall Islands (B), Mauritius (B), Mayotte, Mexico, Micronesia [Federated States of] (B), Nauru, New Caledonia, New Zealand (B), Niue, Norfolk Island, Northern Mariana Islands, Palau (B), Papua New Guinea, Pitcairn Islands (B), Réunion, Samoa, Seychelles (B), Solomon Islands, St Helena, Tokelau, Tonga, Trinidad and Tobago, Tuvalu, United States Minor Outlying Islands (B), USA, Vanuatu, Vietnam, Wallis and Futuna Islands (B).

Vagrant to Christmas Island.

Image of Range of White Tern
Breeds on many islands in the tropical Atlantic, Indian and Pacific Oceans, including the Kermadecs, Lord Howe and Norfolk Islands. Vagrant to the eastern coast of Australia.
 
Rarity Status
View Rarity Status Information

Population
Estimated population is 150,000 - 1,100,000 (2010).

Status LC
For more information see BirdLife International Species Factsheet.

Habits
Singly or in small groups at breeding sites and fishing in surrounding water but singly or in pairs further out to sea.

Food
Mainly small fish, plucked from the surface of the sea.

Voice
A muffled rasping or grinding sequence, 'arrag-arrag-arrug-urrug-urrug', that gradually fades.



Xeno-Canto Sound Files (more (54)...)

 
White Tern (Gygis alba) [XC431351]
     by JAYRSON ARAUJO DE OLIVEIRA from Arquipelago de Fernando de Noronha, Pernambuco, Brazil (song)

 
White Tern (alba) [XC180006]
     by Todd Mark from Sand Island Midway Atoll, United States (call, flight call)

Breeding Season (Guide)
October - March.

J F M A M J J A S O N D
   
   
   
   
   
   
   
   
   
   
   
   


Nest
None. The egg is laid in a shallow crevice or on the fork of a horizontal limb of a tree. Usually in colonies.

Eggs (Guide)
1; greyish to pale buff, spotted and scrolled with various shades of brown.

Young
Precocial, semi-nidifugous. Fledge in 60 - 75 days.

Subspecies
Subspecies microrhyncha sometimes separated as distinct species, but apparently interbreeds with White Tern (Gygis alba) in Kiribati.

Some authors recognize several additional races, including royana of Norfolk I and Kermadec Is, pacifica of Caroline Is, Melanesia and other islands of southern Pacific, and rothschildi of Hawaii, all of which herein included in nominate race, but all are sometimes referred instead to subspecies candida. Birds of Seychelles and Mascarenes described as monte, but not separable from candida.

The following 4 subspecies are recognised:

  • alba (Sparrman, 1786)   -  Breeds Atlantic Ocean.
  • candida (Gmelin, JF, 1789)   -  Breeds tropical Indian Ocean, including Cocos - Keeling Islands, and much of tropical Pacific Ocean, including Norfolk, Lord Howe and Kermadec Islands.
  • microrhyncha Saunders, H, 1876   -  Breeds Marquesas Island and possibly Kiribati. Considered by some authors to be a distinct species, Little White Tern (Gygis microrhyncha).
  • leucopes Holyoak & Thibault, 1976   -  Breeds Pitcairn Group.



References
See References.

The Field Guide to the Birds of Australia Pizzey, G., and Knight, E., 1997, Angus & Robertson, Sydney ISBN 0 207 19691 5
Field Guide to Australian Birds Morecombe, M., 2000, Steve Parish Publishing Pty Ltd. ISBN 1 876282 10 X
Field Guide to the Birds of Australia Simpson, K., and Day, N., 1999, 6th Edition, Viking ISBN 0 670 87918 5
Reader's Digest Complete Book of Australian Birds 1988, 2nd Edition, Reader's Digest ISBN 0 949819 99 9
What Bird is That? 1984, Revised Edition, Angus & Robertson, Sydney ISBN 0 207 14846 5
Handbook of Australian, New Zealand & Antarctic Birds 1990 - , Oxford University Press, Melbourne ISBN 0 19 553244 9

More... see more information (images, calls, videos etc)


Files:
JPG files for White Tern (Gygis alba) - 9 filesMP3 files for White Tern (Gygis alba) - 2 files


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BirdLife International

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