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Gull
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| Photo Information |
Copyright: Jose Conceicao (jconceicao)
(2489) |
| Genre: Animals |
| Medium: Color |
| Date Taken: 2008-03-13 |
| Categories: Birds |
| Camera: Canon 400 D, 75-300mm f4-5.6 |
| Exposure: f/5.6, 1/2500 seconds |
| Photo Version: Original Version |
| Date Submitted: 2008-03-19 12:50 |
| Viewed: 963 |
| Points: 40 |
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| [Note Guidelines] Photographer's Note [Portuguese] |
Azenhas do Mar - Sintra
Herring Gull
From Wikipedia, the free encyclopedia:
The Herring Gull, Larus argentatus, is a large gull (up to 26 inches or 66 cm long), and is the most abundant and best known of all gulls along the shores of Asia, western Europe, and North America. It breeds across North America, Europe and Asia. Some Herring Gulls, especially those resident in colder areas, migrate further south in winter, but many are permanent residents, e.g. those on the lower Great Lakes, on the east coast of North America or at the North Sea shores. Herring Gulls are also abundant around inland garbage dumps, and some have even adapted to life in inland cities.
Taxonomy:
The taxonomy of the Herring Gull / Lesser Black-backed Gull complex is very complicated, different authorities recognising between two and eight species.
This group has a ring distribution around the northern hemisphere. Differences between adjacent forms in this ring are fairly small, but by the time the circuit is completed, the end members, Herring Gull and Lesser Black-backed Gull, are clearly different species.
The Association of European Rarities Committees recognises six species:
• Herring Gull, Larus argentatus
• American Herring Gull, Larus smithsonianus
• Caspian Gull, Larus cachinnans
• Yellow-legged Gull, Larus michahellis
• East Siberian Gull, Larus vegae
• Armenian Gull, Larus armenicus
Subspecies:
•L. a. argentatus, the nominate form, breeds in Scandinavia and north-west Russia. Northern and eastern populations migrate south-west in winter. It is a large, bulky gull with extensive white in the wingtips.
•L. a. argenteus breeds in Western Europe in Iceland, the Faroes, Britain, Ireland, France, Belgium, the Netherlands and Germany. Many birds are resident while others make short-distance migratory journeys. It is smaller than L. a. argentatus with more black and less white in the wingtips and paler upperparts.
The two following taxa are classified as subspecies of Larus argentatus by some authorities such as the American Ornithologists' Union and Handbook of the Birds of the World. Others such as the Association of European Rarities Committees and British Ornithologists' Union now regard them as one or two separate species.
•L. (a.) smithsonianus, American Herring Gull, breeds in Alaska, Canada and the north-east United States. Many birds migrate southwards in winter, reaching as far as Central America and the West Indies. Immature birds tend to be darker and more uniformly brown than European Herring Gulls and have a dark tail.
•L. (a.) vegae, Vega Gull, breeds in north-east Siberia. It winters in Japan, Korea, eastern China and Taiwan.
Several other gulls have been included in this species in the past but are now normally considered separate, e.g. Yellow-legged Gull (L. michahellis), Caspian Gull (L. cachinnans), Armenian Gull (L. armenicus) and Heuglin's Gull (L. heuglini).
Description:
The average Herring Gull is 55-66 cm (22-26 inches) long with a wingspan of 138-150 cm. Adults in breeding plumage have a grey back and upperwings and white head and underparts. The wingtips are black with white spots known as "mirrors" . The bill is yellow with a red spot and there is a ring of bare yellow skin around the pale eye. The legs are normally pink at all ages but can be yellowish, particularly in the Baltic population which was formerly regarded as a separate subspecies "L. a. omissus". Non-breeding adults have brown streaks on the head and neck. Male and female plumage is identical at all stages of development, however adult males are often larger.[4]
Juvenile and first-winter birds are mainly brown with darker streaks and have a dark bill and eyes. Second-winter birds have a whiter head and underparts with less streaking and the back is grey. Third-winter individuals are similar to adults but retain some of the features of immature birds such as brown feathers in the wings and dark markings on the bill.
Similar species:
Adult Herring Gulls are similar to Ring-billed Gulls but are much larger, have pinkish legs, and a much thicker yellow bill with more pronounced gonys. First-winter Herring Gulls are much browner, but second and third-winter birds can be confusing since soft part colors are variable and third-year Herring Gull often show a ring around the bill. Such birds are most easily distinguished by the larger size and larger bill of Herring Gull.
Voice:
The loud laughing call is well-known in the northern hemisphere. The Herring Gull also has a yelping alarm call and a low barking anxiety call.
Behaviour:
A Herring Gull producing guano near Île-de-Bréhat.
Herring Gull flocks have a loose pecking order, based on size, aggressiveness and physical strength. Communication between these birds is complex and highly-developed - employing both calls and body language. Two identical vocalizations can have very different (sometimes opposite) meanings, for example - depending on the positionings of the head, body, wings and tail relative to each other and the ground in the calling gull.
Unlike many flocking birds, Herring Gulls do not engage in social grooming and keep physical contact between individuals to a minimum. Outside of the male/female and parent/chick relationship, each Herring Gull attempts to maintain a respectful 'safe distance' from others of its kind. Any breach of this results in fighting, though severe injuries are seldom inflicted.
Herring Gulls are known to be capable of seeing ultraviolet light.[5]
Parasites of Herring gulls include the fluke Microphallus piriformes.
Diet:
These are omnivores like most Larus gulls, and will scavenge on rubbish tips and elsewhere, as well as seeking suitable small prey in fields or on the coast, or robbing plovers or lapwings of their catches. Despite their name, they have no special preference for herrings.
Reproduction:
Two to four eggs, usually three, are laid on the ground or cliff ledges in colonies, and are defended vigorously by this large gull. The eggs are a dark blotched, olive color. They are incubated for 28-30 days.
Juveniles use their beaks to "knock" on the red spot on the beaks of adults to indicate hunger. Parents typically disgorge food for their offspring when they are "knocked".The young birds are able to fly 35-40 days after hatching |
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Beautiful gull nice pose and colours
Cyber-Rayder
Excelente foto, boa definição, bons pormenores, o olhar está espetacular.
Obrigado
Luis
- Necipp
(100) - [2008-03-20 14:18]
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Hello Jose welcome to the site, a fine profile good detail in the eye and nice angle of light. Great matching background tfs rgds Necip
Hi Jose,
Great detailed shot and good composition. Good work!
Thanks
Pekka
- jossim
(12248) - [2008-03-24 2:52]
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Bonjour Jose,
Belle prise,j'aime bien l'harmonie des couleurs entre le sujet et l'arriere plan.
Merci pour le partage et bienvenue sur TN.
Joseph.
Joseph
- warnzy
(20) - [2008-03-25 11:34]
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Hi Jose,
I think it's quite difficult to post pictures of fairly common birds (which this is), and present something different. This ticks all the boxed for me. It's a really soft looking portrait, with beautifully understated colours and the dark areas at the top and bottom of the frame add a really pleasing effect. Beautiful colours and light and a great posting.
Mike
- rcrick
(4989) - [2008-03-27 3:53]
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Hi jose,
Many thanks for the feedback and welcome to T.N, lovely shot of this Gull, beautiful eye detail, and the soft back ground is perfect and really complements the overall image, nice work look forward to seeing more, all the best Cheers Rick :)
- lgfoto
(1536) - [2008-03-29 16:09]
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NIce sharp eye Jose with well mastered contrast to BG.TFS
- arfer
(0) - [2008-03-29 20:41]
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Hello Jose
A lovely portrait of this gull.
The colours and lighting are very good.
I like the OOF BG,it matches the subject well.
Excellent eye detail and colour.
The POV and DOF are very good.
TFS
Rob
- SelenE
(13820) - [2008-03-31 9:23]
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Hi Jose,
Nice portrait of this gull with good POV, composition and background. TFS
Greetings,
Selen
- EOSF1
(23469) - [2008-04-01 20:58]
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Very nice shot of this Gull, great sharpness, good exposure and well composed, thanks!
Mario
Ola´Julio,
Que bela gaivota e que ótima foto você fez.
Parabéns e boas vindas ao TN.
Parabéns
hi jose!
good shot on tne gull with good
sharpness and very fine exposure!
well done!
- Janice
(18648) - [2008-05-30 18:00]
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Hello Jose
These birds are always good models for us to photograph. Their colours and details are always so attractive.
You show him well, and he has the catch-light in his eye. Good profile pose
Thank you for sharing
Janice
bonjour jose
le piqué est un peu limite mais peut etre que l'oiseau etait vraiment loin,en revanche l'exposition est bien maitrisée.
laurent
- oguz (24)
- [2008-07-16 4:34]
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hi
good colours and focus.beautiful gull
greetings
Hi Jose, splendid portrait of lovely gull, excellent sharpness and fine details, very well done, ciao Silvio
Hi, Jose,
reminding me of my most favourite book: Jonathan Livingston Seagull! thans for sharing this beautiful photo!!
chrs,
Man Yee
very sharp and clear image
diffucult subject because of all that white is easy to be overexposed
i like the eye
TFS
Hallo Jose
A wonderful image with clear details of this lovely bird. A lovely close-up pose with stunning colours and sharp details. The white feathers of this bird is really white and creates a feeling of purity and innocence. The colour of the eye is very special. It was a real pleasure to look at. Kind regards
Anna
Magnífica!!