(Flight photo added) |
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− | [[Image:19005White-naped Tern.jpg|thumb|500px|right|Photo by Karim Madoya | + | [[Image:19005White-naped Tern.jpg|thumb|500px|right|Photo by {{user|Karim+Madoya|Karim Madoya}} <br />Lokawi Seashore, Kota Kinabalu]] |
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;[[:Category:Sterna|Sterna]] sumatrana | ;[[:Category:Sterna|Sterna]] sumatrana | ||
==Identification== | ==Identification== | ||
− | 30cm. White face and breast, greyish-white back and wings, black nape band, black spot in front of eye, black bill with yellow tip, black legs and feet, brown iris, long forked tail. | + | 30cm. White face and breast, greyish-white back and wings, black nape band, black spot in front of eye, black bill with yellow tip, black legs and feet, brown iris, long forked tail.<br /> |
− | + | '''Young birds''' - brown mottling on crown, blackish mottling on nape. <br /> | |
− | Young birds - brown mottling on crown, blackish mottling on nape. | + | '''Juvenile''' - side of head and nape greyish brown, brownish upperparts scalloped buff and grey, whitish rump, rounded unforked tail, yellow bill and feet. |
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− | Juvenile - side of head and nape greyish brown, brownish upperparts scalloped buff and grey, whitish rump, rounded unforked tail, yellow bill and feet. | ||
==Distribution== | ==Distribution== | ||
+ | [[Image:BNT MG 3116.jpg|thumb|350px|right|Photo by {{user|M Kwan|M Kwan }}<br />Eastern Waters [[Hong Kong]]]] | ||
Pacific and Indian Oceans. It is rarely found inland. Breeds on [[Aldabra Atoll]], [[Seychelles]], | Pacific and Indian Oceans. It is rarely found inland. Breeds on [[Aldabra Atoll]], [[Seychelles]], | ||
[[Fiji]] and [[Samoa]]. | [[Fiji]] and [[Samoa]]. | ||
==Taxonomy== | ==Taxonomy== | ||
There are 2 subspecies: | There are 2 subspecies: | ||
− | * ''S s sumatrana'' | + | * ''S. s. sumatrana'' |
− | * ''S s mathewsi'' | + | * ''S. s. mathewsi'' |
==Habitat== | ==Habitat== | ||
Open seas. | Open seas. | ||
==Behaviour== | ==Behaviour== | ||
+ | ====Breeding==== | ||
The nest is typically a simple scrape in the sand or gravel; 1-2 eggs are laid. | The nest is typically a simple scrape in the sand or gravel; 1-2 eggs are laid. | ||
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====Vocalisation==== | ====Vocalisation==== | ||
Voice: sharp ''tsii-chee-chi-chip'' or in alarm ''chit-chit-chitrer''. | Voice: sharp ''tsii-chee-chi-chip'' or in alarm ''chit-chit-chitrer''. |
Revision as of 12:39, 23 March 2009
- Sterna sumatrana
Identification
30cm. White face and breast, greyish-white back and wings, black nape band, black spot in front of eye, black bill with yellow tip, black legs and feet, brown iris, long forked tail.
Young birds - brown mottling on crown, blackish mottling on nape.
Juvenile - side of head and nape greyish brown, brownish upperparts scalloped buff and grey, whitish rump, rounded unforked tail, yellow bill and feet.
Distribution
Pacific and Indian Oceans. It is rarely found inland. Breeds on Aldabra Atoll, Seychelles, Fiji and Samoa.
Taxonomy
There are 2 subspecies:
- S. s. sumatrana
- S. s. mathewsi
Habitat
Open seas.
Behaviour
Breeding
The nest is typically a simple scrape in the sand or gravel; 1-2 eggs are laid.
Vocalisation
Voice: sharp tsii-chee-chi-chip or in alarm chit-chit-chitrer.