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| − | '''Alternative name: Swift Tern''' | + | '''Alternative name: Swift Tern, Greater Crested Tern''' |
[[Image:Crested_tern.jpg|thumb|550px|right|Photo by {{user|Karim+Madoya|Karim Madoya}}<br /> Lokawi, Sabah, [[Malaysia]], March 2007]] | [[Image:Crested_tern.jpg|thumb|550px|right|Photo by {{user|Karim+Madoya|Karim Madoya}}<br /> Lokawi, Sabah, [[Malaysia]], March 2007]] | ||
;[[:Category:Thalasseus|Thalasseus]] bergii | ;[[:Category:Thalasseus|Thalasseus]] bergii | ||
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Their diet consists mostly of fish, but squid, crabs, turtles etc are also taken if the chance arises. | Their diet consists mostly of fish, but squid, crabs, turtles etc are also taken if the chance arises. | ||
==References== | ==References== | ||
| − | #{{Ref- | + | #{{Ref-Clements6thAug15}}#{{Ref-Gilletal09}}#Avibase |
#Handbook of the Birds of the World Alive (retrieved July 2014) | #Handbook of the Birds of the World Alive (retrieved July 2014) | ||
{{ref}} | {{ref}} | ||
==External Links== | ==External Links== | ||
{{GSearch|Tern+bergii}} | {{GSearch|Tern+bergii}} | ||
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| + | {{Video|Greater_Crested_Tern Use "Greater Crested Tern" to}} | ||
| − | [[Category:Birds]][[Category:Sterna]] [[Category:Thalasseus]] | + | [[Category:Birds]][[Category:Sterna]] [[Category:Thalasseus]] [[Category:Videos]] |
Revision as of 20:35, 10 September 2015
Alternative name: Swift Tern, Greater Crested Tern
- Thalasseus bergii
Sterna bergii
Identification
A large (43–53 cm) tern with a black cap that crests behind the head, bright white underparts, and gray back and wings.
The bill is long, yellow, and slightly down-curved.
Wings are long, extending behind the tail when not in flight.
Legs black.
Distribution
Coasts of Africa, southern Asia and Australasia:
Northern Africa: occurs only in Egypt
Eastern Africa: Sudan, Eritrea, Djibouti, Somalia, Kenya, Tanzania, Zanzibar, Mozambique, Namibia
South Africa: KwaZulu-Natal
African Islands: Madagascar, Comoros, Seychelles
Middle East: Israel, Arabian Peninsula, Saudi Arabia, Yemen, Socotra, Oman, United Arab Emirates, Qatar, Bahrain, Kuwait, Iraq, Iran
Asia: China, Pakistan, India, Andaman and Nicobar Islands, Maldives, Sri Lanka, Bangladesh, Japan, Taiwan
Southeast Asia: Indochina, Myanmar, Laos, Vietnam, Cambodia, Thailand, Malaysia, Borneo, Malay Peninsula, Brunei, Singapore, Philippines, Indonesia, Greater Sundas, Sumatra, Java, Sulawesi, Lesser Sundas, Bali, West Timor, East Timor
Australasia: New Guinea, Papua New Guinea, Australia: New South Wales, Northern Territory, Queensland, South Australia, Tasmania, Victoria, Western Australia, Polynesia, Melanesia, Samoa, Micronesia, Fiji, Solomon Islands, Vanuatu, Tonga, New Caledonia, Micronesia
Taxonomy
Some authorities place this species in the genus Sterna.
Subspecies
Sterna bergii has six subspecies:[1]
- S. b. bergii
- Namibia and South Africa; disperses to Mozambique
- S. b. enigma
- Islands off Mozambique, Zambezi River delta and Madagascar
- S. b. thalassinus
- Tanzania, Seychelles, Aldabra and Rodriques Island
- S. b. velox
- S. b. cristatus
- Malaysia to Philippines and Ryukyus; eastern Australia to Society Islands
- S. b. gwendolenae
- Western and north-western Australia
Habitat
Tropical coasts and islands.
Behaviour
Forages by plunging from several meters above the surface to take fish. Noisy, often in flocks. A common tern in its range.
Diet
Their diet consists mostly of fish, but squid, crabs, turtles etc are also taken if the chance arises.
References
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, D. Roberson, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2015. The eBird/Clements checklist of birds of the world: v2015, with updates to August 2015. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/
- Gill, F, M Wright and D Donsker. 2009. IOC World Bird Names (version 2.0). Available at http://www.worldbirdnames.org/.
- Avibase
- Handbook of the Birds of the World Alive (retrieved July 2014)
Recommended Citation
- BirdForum Opus contributors. (2024) Great Crested Tern. In: BirdForum, the forum for wild birds and birding. Retrieved 23 April 2024 from https://www.birdforum.net/opus/Great_Crested_Tern
External Links
