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
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
In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...
:
*''S. s. mathewsi''
( Stresemann, 1914) – islands of the western
Indian Ocean
The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by th ...
*''S. s. sumatrana''
( Raffles, 1822) – islands of the eastern
Indian Ocean
The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by th ...
through to the western
Pacific &
Australasia
Australasia is a region that comprises Australia, New Zealand and some neighbouring islands in the Pacific Ocean. The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologica ...
References
External links
Kiru Dhooni
black-naped tern
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
The tern is about 30 cm long with a wing length of 21†...
Birds of the Maldives
Birds of Seychelles
Birds of Southeast Asia
Birds of Oceania
black-naped tern
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
The tern is about 30 cm long with a wing length of 21†...
Articles containing video clips
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