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[[Image:Black-billed_Gull.jpg|thumb|550px|right|Photo by {{user|janha|janha}} <br />Lake Wakatipu, [[New Zealand]], October 2004]] | [[Image:Black-billed_Gull.jpg|thumb|550px|right|Photo by {{user|janha|janha}} <br />Lake Wakatipu, [[New Zealand]], October 2004]] | ||
| − | ;[[:Category: | + | ;[[:Category:Chroicocephalus|Chroicocephalus]] bulleri |
| − | '' | + | ''Larus bulleri'' |
==Identification== | ==Identification== | ||
37cm<br /> | 37cm<br /> | ||
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[[New Zealand]], breeding in South Island, wintering in North Island. | [[New Zealand]], breeding in South Island, wintering in North Island. | ||
==Taxonomy== | ==Taxonomy== | ||
| − | This is a monotypic species <sup>[[#References|1]]</sup> which is sometimes placed in genus ''[[:Category: | + | This is a monotypic species <sup>[[#References|1]]</sup> which is sometimes placed in genus ''[[:Category:Larus|Larus]]''. |
==Habitat== | ==Habitat== | ||
Usually seen inland at rivers, freshwater lakes and marshes, sandy shores, pastures and in towns. | Usually seen inland at rivers, freshwater lakes and marshes, sandy shores, pastures and in towns. | ||
| Line 32: | Line 32: | ||
{{ref}} | {{ref}} | ||
==External Links== | ==External Links== | ||
| − | {{GSearch|Larus+bulleri}} | + | {{GSearch|Chroicocephalus+bulleri Use ''Chroicocephalus bulleri'' to}} |
| + | {{GSearch|Larus+bulleri Use ''Larus bulleri'' to}} | ||
[[Category:Birds]][[Category:Larus]] [[Category:Chroicocephalus]] | [[Category:Birds]][[Category:Larus]] [[Category:Chroicocephalus]] | ||
Revision as of 17:30, 19 January 2011
- Chroicocephalus bulleri
Larus bulleri
Identification
37cm
- Grey and white plumage
- Black bill and legs
- Black wing tips
Juvenile: paler legs and bill, dark eyes and small white mirrors on the wings.
Similar Species
Distribution
New Zealand, breeding in South Island, wintering in North Island.
Taxonomy
This is a monotypic species 1 which is sometimes placed in genus Larus.
Habitat
Usually seen inland at rivers, freshwater lakes and marshes, sandy shores, pastures and in towns.
Status
Classified as Endangered in the 2008 IUCN Red List.2
Behaviour
Diet
The diet includes fish and aquatic invertebrates, insects, beetles and worms.
Breeding
The birds are faithful to their breeding site returning each year. Both adults construct the nest, which is a deep depression lined with twigs and grass, during October. The clutch consists of 1-3 eggs which are incubated by both adults for around 22 days. The chicks are tended by both adults until fledging at 26 days.
References
- Clements, JF. 2009. The Clements Checklist of Birds of the World. 6th ed., with updates to December 2009. Ithaca: Cornell Univ. Press. ISBN 978-0801445019.
- BirdLife International (2008) Species factsheet: Larus bulleri. Downloaded from http://www.birdlife.org on 16/9/2008.
- Wikipedia
- ArKive
- BF Member observations
Recommended Citation
- BirdForum Opus contributors. (2024) Black-billed Gull. In: BirdForum, the forum for wild birds and birding. Retrieved 5 May 2024 from https://www.birdforum.net/opus/Black-billed_Gull
