• UK Gulls

    A blog dedicated to information, photos, videos, and discussions about gull species recorded in the United Kingdom (UK).

  • The Gullery

    A study of two gull colonies in the North of England; Rockcliffe Marsh on the West and Marsden on the East.

  • Luka and Ringing

    Blog about ringing in Croatia, including cannon-netting gulls.

  • Frank Majoor's website

    Colour-ringing research on Black-headed Gulls and Common Gulls in The Netherlands.

  • The Madrid Gull Team

    The blog of the Madrid Gull Team (Juan M. Ruiz, Delfín González, Miguel Juan, Óscar Frías y Javier Marchamalo)

  • Guernsey Gulls

    A web site run by Paul Veron giving details of gulls in the Bailiwick of Guernsey in the Channel Islands

  • Gulls on Film

    A site dedicated to videos of Gulls from Youtube and other sources.

  • GullPix by Oskar Nilsson

    A gallery of gull pictures from Sweden and elsewhere in Europe, including some "Problematic Gulls".

  • Ies Meulmeester's website

    A well-organised selection of gull pictures, mostly taken in the Netherlands, and especially in the province of Zeeland.

  • Yellow-legged Gull in the Balearic Islands

    A gallery of Yellow-legged Gulls photos, organised by month and age. Text in Spanish.

  • The Norwegian Gull Page

    This website aims to provide birders worldwide with an extensive picture gallery with comments, to serve as an identification reference source for gulls in North-west Europe.

  • The Gull Research Organisation

    Reference website for European gull taxa, including Heuglin's Gull Larus heuglini and Slender-billed Gull Larus genei.

  • Gulls in Amsterdam

    The site of Ruud Altenburg, showing photos from The Netherlands, Poland and North-west France.

  • Mediterranean Gull Official Website

    A French site, written in English, dedicated to Mediterannean Gulls Larus melanocephalus, particularly the reading of colour rings.

  • Tracking Larus fuscus

    An Icelandic colour ringing project on Lesser Black-backed Gulls

  • Martin Reid - Birds, Bugs and Beyond...

    Although the author is based in the United States, this site includes photos from around the world and includes an interesting series of "mystery gulls".


Here are links to other gull research, identification and photo websites.

If you know of a website that we have missed, please contact us.

Bird ringing in Britain is licensed and coordinated by The British Trust for Ornithology.

Bird ringing in Europe is coordinated by EURING.

A catalogue of colour ringing projects throughout Europe is voluntarily maintained by Dirk Raes at European colour-ring Birding.

Website designed and built by Garganey Consulting


  • Occurrence of Caspian Gulls Larus cachinnans along the Dutch coastline

    Klaas van Dijk Sula (in press)

  • Black-headed Gull of 33 years and re-appeal to stop using aluminium rings to mark gulls

    Klaas van Dijk, Date Lutterop, Rob Voesten & Frank Majoor

  • Are European Herring Gull Larus argentatus movement patterns changing in relation to anthropogenic activities?

    Caroline Elizabeth Coleman University of Birmingham MSc dissertation

    This project investigated whether there were changes in Herring Gull (Larus argentatus) movement patterns and possible links with anthropogenic change.

    Observational data from BirdTrack and ringing data from EURING schemes, the Severn Estuary Gull Group and North Thames Gull Group were used. Mapping, statistical analysis and visual examination of plotted data were employed to determine whether there were changes in the distributions of observations and ring recoveries; population-level movements within distance bands; or individual movements. Seasonal and age-related influences were also investigated.

    A range of sedentary and migratory behaviours were found amongst Herring Gulls ringed in Britain, with those from the Severn Estuary being the most likely to remain sedentary.

    There was a decrease in percentage recovery rates at Herring Gulls’ original ringing locations and significant changes over medium distances (particularly those up to 60 km from the ringing location). Evidence of human activities in and around ringing locations indicated that they could be associated with the observed changes in Herring Gull movements. Limited evidence was found for seasonal and age-related differences in responses.

    Herring Gulls are of conservation concern in Britain and declining in some other European countries, but they also frequently cause conflict when they occur within the human environment. Further research approaches, including tracking techniques, are recommended to enhance the evidence underpinning conservation and management of the species.

  • New longevity records of Black-headed Gull, with comments on wear and loss of aluminium rings

    Klaas van Dijk, René Oosterhuis, Benny Middendorp & Frank Majoor

  • Differential Age-Related Phenology in Lesser Black-Backed Gull Larus fuscus Wintering in the Malaga Area

    S. García-BarcelonaArdeola 57(Especial), 2010, 127-132.

    We aimed to identify the existence of age-classes groups that shared similar seasonal patterns in migration movements for the lesser black-backed gull Larus fuscus. The gull age-classes groups were defined as sets of age-classes that were present in the harbour of Malaga (South of Spain) simultaneously during the wintering season.We distinguished ten groups of age-classes, which can be subsequently lumped into four big age-class groups: (i) immature stage-class, (ii) young breeders, (iii) age-classes from 6 to 11 years old, and (iv) age-classes older than 11 years old. Our present results supported the ‘dominance and arrival time model’.

  • The influence of colour-rings on recovery rates of Herring and Lesser Black-backed Gulls

    C. B. Shedden, P. Monaghan, K. Ensor and N. B. Metcalfe Ringing and Migration. (1985) 6: 52-54.

    Comparison of recovery rates of Herring and Lesser Black-backed Gulls with and without colour-rings in addition to a metal ring shows that colour- ringed birds are twice as likely to be recovered and reported to the British Trust for Ornithology. Implications for studies of mortality rates are discussed.

  • Migration of Pontic Gulls Larus cachinnans form ‘ponticus’ ringed in the south of Ukraine: a review of recoveries from 1929 to 2003.

    A. G. Rudenko in Boere, G.C., Galbraith, C.A. & Stroud, D.A. (eds). 2006. Waterbirds around the world. The Stationery Office, Edinburgh, UK.

  • The Morlan Method - Dichotomous Keys for Western North American Gull Identification

    J. Morlan

  • Yellow-legged Gull and Caspian Gull (in German)

    Martin Gottschling Der Falke 51, 148-155

    Yellow-legged Gull Larus michahelllis and Caspian Gull Larus cachinnans are not found in many standard field guides. Only in recent times have these been recognized as separate species, which decades ago were still counted as Herring Gull. Hints and tips for the determination of the two very similar species are important for birdwatchers.

  • Scandinavian Herring Gulls wintering in Britain

    Coulson, J. C., Monaghan, P., Butterfield, J. E. L., Duncan, N., Ensor, K., Shedden, C. and Thomas, C. Ornis Scand. 15: 79-88.

    Biometric information was obtained from 13000 Herring Gulls Larus argentatus caught and ringed in northern England and southern Scotland outside the breeding season between 1978 and 1983. Morphological differences between males and females and between British and Scandinavian Herring Gulls have been used to identify both the sex and race of the birds. We describe the wintering distribution of the Scandinavian birds in Britain, their age and sex ratios and their time of arrival in and departure from Britain. Scandinavian Herring Gulls start to arrive in Britain in small numbers in September. The proportion of Scandinavian birds increases to a peak in December- January and the birds depart abruptly in late January or early February. Very few Scandinavian Gulls penetrate to the west side of Britain, while on the east side there is considerable regional variation in the proportion of Scandinavian birds. Between 70% and 80% of the adult Scandinavian birds examined were female. The proportion of adults amongst Scandinavian birds was much higher than amongst British birds.