Black-naped tern
Appearance
Black-naped tern | |
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S. s. sumatrana Ko Bi Da Island, off Phi Phi, Thailand | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Charadriiformes |
Family: | Laridae |
Genus: | Sterna |
Species: | S. sumatrana
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Binomial name | |
Sterna sumatrana Raffles, 1822
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The black-naped tern (Sterna sumatrana) is an oceanic tern mostly found in tropical and subtropical areas of the Pacific and Indian Oceans. It is rarely found inland.
Description
[edit]The tern is about 30 cm long with a wing length of 21–23 cm. Their beaks and legs are black, but the tips of their bills are yellow. They have long forked tails. The black-naped tern has a white face and breast with a grayish-white back and wings. The first couple of their primary feathers are gray.
There are two listed subspecies:
- S. s. mathewsi (Stresemann, 1914) – islands of the western Indian Ocean
- S. s. sumatrana (Raffles, 1822) – islands of the eastern Indian Ocean through to the western Pacific & Australasia
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/61/Sterna_sumatrana_MHNT.ZOO.2010.11.131.15.jpg/220px-Sterna_sumatrana_MHNT.ZOO.2010.11.131.15.jpg)
References
[edit]- ^ BirdLife International (2018). "Sterna sumatrana". IUCN Red List of Threatened Species. 2018: e.T22694612A132561758. doi:10.2305/IUCN.UK.2018-2.RLTS.T22694612A132561758.en. Retrieved 12 November 2021.
External links
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