Gull ID
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Gull ID
Articles about ID of gulls
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Identification and ageing of Glaucous and Iceland Gulls (R. A. Hume, British Birds - Requires Registration)

Despite papers on the two species by Kay (1947, 1950), the plum- ages and characteristics of the Glaucous Gull Lams hyperboreus and the Iceland Gull L. glaucoides are still given inadequate, confusing and sometimes contradictory treatment in more recent literature.

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Variations in Herring Gulls at a Midland roost (RA Hume, British Birds - Requires Registration)

The Herring Gulls observed in central England in winter appear to be of at least four distinct types. Can they be related to known races? Where do they originate?

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Iceland Gulls from the Braer disaster, Shetland 1993 (DN Weir, et al, British Birds - Requires Registration)

Iceland Gulls Lams glaucoides are uncommon winter visitors to Britain and Ireland, most regularly to Shetland (Lack 1986), The conventional view is that occurrences are of Iceland Gulls of the race glaucoides from Greenland (Cramp & Simmons 1983). Recently, a few individuals of the Canadian race kumlieni have been recorded, including two specimens in 1993, and some sightings have popularly been attributed to 'Thayer's Gull* L. g. thayeri (Millington 1993).

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Field identification of west Palearctic gulls Part 2 (P. J. Grant, British Birds - Requires Registration)

Part 2. Common, Mediterranean, Ring-billed, Laughing and Franklin's Gulls

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Field identification of west Palearctic gulls part 5 (P.J. Grant, British Birds - Requires Registration)

Part 5. Glaucous, Iceland, Sooty and White-eyed Gulls.

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Mediterranean Gulls at Blackplll, Glamorgan (R. A. Hume & P. G. Lansdow, British Birds - Requires Registration)

From November 1972 to late July 1973 Mediterranean Gulls Lams melanocephalus were continually, though by no means daily, present at Blackpill, Glamorgan, 18 different individuals being involved. Blaekpill is the part of Swansea Bay beach which attracts the majority of the gulls in the area, due to a small stream which runs out across the beach affording bathing facilities, a higher stretch of beach giving a longer resting time for the birds before each high tide, and a sand bar which remains uncovered except during the higher tides.

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THE PLUMAGE AND LEG COLOUR OF THE KITTIWAKE AND COMMENTS ON THE NON-BREEDING POPULA TION (J. C. Coulson, British Birds - Requires Registration)

IT IS an advantage in ecological studies to be able to divide a population into age groups or into mature and immature stages In the Laridae (gulls and terns), where the majority of species have a distinctive " immature" plumage, it has...

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Franklin's Gull in Hampshire: a species new to Britain and Ireland (D. F. Billett & P.J. Grant, British Birds - Requires Registration)

At 16.40 on 21st February 1970 J. T. Smith and D.F.B. were at the southern tip of Farlington Marshes, Hampshire, when a small, darkwinged gull approached low along the shore and settled immediately in front of them about 100 yards away.

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Historical and taxonomic review of the Iceland Gull Larus glaucoides complex (Robert Y. McGowan & Andrew C. Kitchener, British Birds - Requires Registration)

The Iceland Gull Larus glaucoides is now generally regarded as comprising three subspecies: L. g. glaucoides, which breeds in Greenland, L. g. kumlieni ('Kumlien's Gull'), which breeds mostly on Baffin Island, and L. g. thayeri ('Thayer's Gull'), which breeds throughout the Canadian High Arctic (fig. 1).

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Identification pitfalls and assessment problems - 9. Ring-billed Gull Larus delawarensis (Keith Vinicombe, British Birds - Requires Registration)

This series, which started in January 1983 (Brit. Birds 76: 26-28), is not intended to cover all facets of the identification of the species concerned, but only the major sources of error likely to mislead the observer in the field or the person attempting to assess the written evidence. The...

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PHOTORAPHIC STUDIES OF SOME LESS FAMILIÄR BIRDS LXXVIII. MEDITERRANEAN BLACK-HEADED GULL (British Birds - Requires Registration)

WE are fortunate to be able to publish this month photographs from Hungary of the Mediterranean Black-headed Gull (Larus melanocephalus) taken by D r. Peter Beretzk of the University of Szeged. D r . Beretzk has also been kind enough t o give u s some details of the discovery and history of the breeding of this bird in Hungary, which represents a considerable extension of its range.

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A second Ring-billed Gull in Glamorgan (K. E. Vinicombe, British Birds - Requires Registration)

Less than three months after the first recorded British occurrence of the Ring-billed Gull Lams delawarensis, an adult at Blackpill, Swansea Bay, Glamorgan (Hume 1973), D. W. Evans and I found a first-summer bird of this species at the same locality.

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Field-characters of the immature Laughing Gull (Tomas Albrektsson & Peter Lindber, British Birds - Requires Registration)

From 18th to 20th January 1964 an immature Laughing Gull Larm atricilla was observed at the port of Goteborg, on the west coast of Sweden. According to the Inventaire des Oiseaux de France (1963) by N. Mayaud, H. Heim de Balsac and H. Jouard, a specimen was obtained in breeding plumage at Le Crotoy, at the mouth of the Somme, France, on 29th June 1877...

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Voice, behaviour and display of Mediterranean Gulls (J. H.Taverner, British Birds - Requires Registration)

Since 1966, Mediterranean Gulls Larus melanocephalus have bred or held territories in the seabird colony at Needs Oar Point, Hampshire (Taverner 1970, 1972). The colony is wardened at all times during the breeding season and this constant coverage, often from a hide at close range, has offered many opportunities to study behaviour and display of Mediterranean Gulls.

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Measurements and weights of Great Black-backed Gulls (MP Harris, British Birds - Requires Registration)

LITTLE WORK H A S BEEN DONE on the measurements of British marine gulls and this short paper is intended t o give some idea o f the size range a n d s e x differences within a single population o f Great Black-backed Gulls Larus marinus.

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Identification of Yellow-legged Gulls in Britain (Martin Garner, British Birds - Requires Registration)

Popular debate on the taxonomy and identification of Herring Gulls Larus argentatus and associated forms has become increasingly frequent. A contentious aspect for British birdwatchers is that the British Ornithologists' Union Records Committee has not (yet?) decided to 'split' Yellow-legged Gull L. (argentatus) cachinnans from the northwestern argentatus/argenteus Herring Gull group.

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Field identification of west Palearctic gulls Part 3 (P.J. Grant, British Birds - Requires Registration)

Part 3. Audouin's, Herring, Lesser Black-backed, Great Black- backed and Great Black-headed Gulls

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Field identification of Ring-billed Gulls (PJ Grant, British Birds - Requires Registration)

There can be few more likely candidates for future addition to the British and Irish list than the Ring-billed Gull Larus delawarensis. It is abundant in North America, and although it breeds mainly inland (southwards to North Dakota and Ontario) it winters on the Atlantic coast from New England to the Gulf of Mexico, a migratory pattern which would seem to render it liable to transatlantic vagrancy.

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Ross's Gulls in Alaska (M Densley, British Birds - Requires Registration)

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Status of the form barabensis within the ‘Larus argentatus– cachinnans–fuscus complex (Evgeniy N. Panov & Dmitriy G. Monzikov, British Birds - Requires Registration)

Between 19th July and 1st August 1997, at the Chany Lakes in southwestern Siberia, data were collected on phenotype features and behaviour of the local populations of gulls Larus belonging to the taxonomically vague form barabensis.These were compared with data from the literature and museum material on the morphological, oological and behavioural characters of L. c. cachinnans and L. (fuscus?) heuglini, as well as those of some other related gull forms.

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PHOTORAPHIC STUDIES OF SOME LESS FAMILIAR BIRDS LXHI. SABINE'S GULL (IJ Ferguson-Lees, British Birds - Requires Registration)

SABINE'S GULL (Xema sabini) is an Arctic-nesting species breeding on low-lying marshy ground in tundra regions. I t is not a common bird anywhere in its range, but the main breeding areas are in Arctic Canada, Baffin Island, and N . W . Greenland; Arctic Siberia, from the...

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A presumed hybrid mediterranean X Black- headed Gull in Hampshire (J. H. Taverner, British Birds - Requires Registration)

In 1968, 1969 and 1970 several Mediterranean Gulls Larus melanocepbalus summered in a colony of Black-headed Gulls L.ridibundusat Needs Oar Point, Hampshire; in 1968 one pair of Mediterranean Gulls and a mixed pair of the two species raised young; in 1969 and 1970 several male Mediterranean Gulls held...

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Laughing Gull in Kent: a species new to Britain and Ireland (W. F. A. Buck & D. W. Taylor, British Birds - Requires Registration)

On the morning of nth May 1966 we discovered an unusual gull at rest in one of the gravel diggings at Lade Pits neat Dungeness, Kent. We had initially passed it over as another Black-headed Gull Lams ridibundus, but a closer look revealed characteristics not associated with that species. Detailed notes were made during some five minutes of observation.

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PHOTOGRAPHIC STUDIES OF SOME LESS FAMILIAR BIRDS XCIV. LITTLE GULL (IJ Ferguson-Lees, British Birds - Requires Registration)

THE LITTLE GULL (Lams minutus) is a purely Palaearctic species with a not particularly extensive breeding: range in the eastern half of Europe and in two apparently quite separate regions of the U.S.S.R.—the first as far south as the Volga-Ural Steppes and as far east as Lake Zaisan, the second (after a gap in Central Asia) eastwards from the region of Lake Baikal—but (pace The Handbook) it is doubtful whether the species nests as far across as the Sea of Okhotsk, north of Japan (Dementiev and Gladkov, 1951; Harber, 1955).

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Studies of less familiar birds 123. Glaucous Gull (I . J . Ferguson-Lees, British Birds - Requires Registration)

With the photographs and paper by Kay (1947) on the characters of the Glaucous Gull (Larus hyperboreus) in winter expressed the hope that pictures of adults on the breeding grounds would soon be available. In fact, however, those now published sixteen years later are the first to have been sent...

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