Great black-backed gull (Larus marinus)

Distribution data supplied by the Ocean Biodiversity Information System (OBIS). To interrogate UK data visit the NBN Atlas.Map Help

Summary

Description

Larus marinus is the largest black-backed gull reaching lengths of up to 75 cm and wing span of up to 1.66 m. The body is bulky with a thick neck and heavy bill. Adult plumage is white, there is a dark grey mantle across the back and the top of the wings, with a trailing white edged and large mirrors (white patches on the wing tips). The bill is yellow with a red patch on the lower tip of the bill (gonys). The legs are a fleshy pink. Immatures display different markings at each age group, from first to third winters. Most first and second winter birds lack black on upperparts, with barred grey brown backs and wings and a black bill. Black upperparts develop gradually and the yellow bill is not fully apparent until maturity.

Recorded distribution in Britain and Ireland

Found all around the UK coastline during the breeding season and also inland at other times of the year.

Global distribution

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Habitat

The great black-backed gull principally frequents rocky coasts and islands during the breeding season but is widespread in inland areas during the winter months. It may then be seen congregating at inland reservoirs, rubbish tips and nearby fields.

Depth range

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Identifying features

  • Large size.
  • Dark grey mantle.
  • Yellow bill with a red patch on gonys of adults.
  • Pink legs.

Additional information

Larus marinus is a scavenger and may eat birds, eggs, fish, offal, dead animals or rubbish. Please note that distribution maps are compiled using records for both breeding and wintering populations. For more specific distribution and abundance records please refer to maps compiled by The British Trust for Ornithology, available at http://www.bto.org/birdatlas/previous/index.htm

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Further information sources

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Bibliography

    Datasets

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    2. BIS for Powys & Brecon Beacons National Park, 2017. Brecknock county birds records. Occurrence dataset: https://doi.org/10.15468/2rd8nh accessed via GBIF.org on 2018-09-25.

    3. Bristol Regional Environmental Records Centre, 2017. BRERC species records recorded over 15 years ago. Occurrence dataset: https://doi.org/10.15468/h1ln5p accessed via GBIF.org on 2018-09-25.

    4. Bristol Regional Environmental Records Centre, 2017. BRERC species records within last 15 years. Occurrence dataset: https://doi.org/10.15468/vntgox accessed via GBIF.org on 2018-09-25.

    5. British Trust for Ornithology, 2018. Birds (BTO+Partners). Occurrence dataset https://www.bto.org/ accessed via NBNAtlas.org on 2018-09-25.

    6. British Trust for Ornithology, 2018. BTO First Atlas of Breeding Birds in Britain and Ireland: 1968-1972. Occurrence dataset: https://www.bto.org/ accessed via NBNAtlas.org on 2018-09-25.

    7. British Trust for Ornithology, 2018. BTO First Atlas of Wintering Birds in Britain and Ireland: 1981/82-1983/84. Occurrence dataset: https://www.bto.org/ accessed via NBNAtlas.org on 2018-09-25.

    8. British Trust for Ornithology, 2018. BTO First Atlas of Wintering Birds in Britain and Ireland: 1981/82-1983/84. Occurrence dataset: https://www.bto.org/ accessed via NBNAtlas.org on 2018-09-25.

    9. British Trust for Ornithology, 2018. The Biodiversity in Glasgow (BIG) Project. Occurrence dataset: https://www.bto.org/research-data-services accessed via NBNAtlas.org on 2018-09-25.

    10. Cofnod – North Wales Environmental Information Service, 2018. Miscellaneous records held on the Cofnod database. Occurrence dataset: https://doi.org/10.15468/hcgqsi accessed via GBIF.org on 2018-09-25.

    11. Cumbria Biodiversity Data Centre, 2018. Tullie House Museum Natural History Collections. Occurrence dataset: https://doi.org/10.15468/epewfs accessed via GBIF.org on 2018-09-25.

    12. Dorset Environmental Records Centre, 2017. Dorset Sites of Nature Conservation Interest (SNCI) species records 2000-2008. Occurrence dataset: https://doi.org/10.15468/r1ebqb accessed via GBIF.org on 2018-09-25.

    13. Dorset Environmental Records Centre, 2017. Dorset Sites of Nature Conservation Interest (SNCI) species records pre 2000. Occurrence dataset: https://doi.org/10.15468/qyg29v accessed via GBIF.org on 2018-09-25.

    14. Dorset Environmental Records Centre, 2017. Dorset SSSI Species Records 1952 - 2004 (Natural England). Occurrence dataset: https://doi.org/10.15468/vcjzts accessed via GBIF.org on 2018-09-25.

    15. Environmental Records Information Centre North East, 2018. ERIC NE Combined dataset to 2017. Occurrence dataset: http://www.ericnortheast.org.ukl accessed via NBNAtlas.org on 2018-09-38

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    17. Fife Nature Records Centre, 2018. St Andrews BioBlitz 2014. Occurrence dataset: https://doi.org/10.15468/erweal accessed via GBIF.org on 2018-09-27.

    18. Fife Nature Records Centre, 2018. St Andrews BioBlitz 2015. Occurrence dataset: https://doi.org/10.15468/xtrbvy accessed via GBIF.org on 2018-09-27.

    19. Fife Nature Records Centre, 2018. St Andrews BioBlitz 2016. Occurrence dataset: https://doi.org/10.15468/146yiz accessed via GBIF.org on 2018-09-27.

    20. Greater Manchester Ecology Unit, 2018. Bird Records held by Greater Manchester Ecology Unit. Occurrence dataset: https://www.tameside.gov.uk/ecologyunit accessed via NBNAtlas.org on 2018-09-27.

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    22. Lancashire Environment Record Network, 2018. LERN Records. Occurrence dataset: https://doi.org/10.15468/esxc9a accessed via GBIF.org on 2018-10-01.

    23. Manx Biological Recording Partnership, 2017. Isle of Man wildlife records from 01/01/2000 to 13/02/2017. Occurrence dataset: https://doi.org/10.15468/mopwow accessed via GBIF.org on 2018-10-01.

    24. Manx Biological Recording Partnership, 2018. Isle of Man historical wildlife records 1995 to 1999. Occurrence dataset: https://doi.org/10.15468/lo2tge accessed via GBIF.org on 2018-10-01.

    25. Manx Biological Recording Partnership, 2022. Isle of Man historical wildlife records 1990 to 1994. Occurrence dataset:https://doi.org/10.15468/aru16v accessed via GBIF.org on 2024-09-27.

    26. Merseyside BioBank, 2017. Merseyside BioBank Active Naturalists (verified). Occurrence dataset: https://doi.org/10.15468/ugurj2 accessed via GBIF.org on 2018-10-01.

    27. Merseyside BioBank., 2017. Merseyside BioBank (verified). Occurrence dataset: https://doi.org/10.15468/ar0p6s accessed via GBIF.org on 2018-10-01.

    28. Merseyside BioBank., 2018. Merseyside BioBank (unverified). Occurrence dataset: https://doi.org/10.15468/iou2ld accessed via GBIF.org on 2018-10-01.

    29. National Trust, 2017. National Trust Species Records. Occurrence dataset: https://doi.org/10.15468/opc6g1 accessed via GBIF.org on 2018-10-01.

    30. National Trust, 2017. Wicken Fen nature reserve species data held by The National Trust. Occurrence dataset: https://doi.org/10.15468/iqeemg accessed via GBIF.org on 2018-10-01.

    31. NBN (National Biodiversity Network) Atlas. Available from: https://www.nbnatlas.org.

    32. Norfolk Biodiversity Information Service, 2017. NBIS Records to December 2016. Occurrence dataset: https://doi.org/10.15468/jca5lo accessed via GBIF.org on 2018-10-01.

    33. North East Scotland Biological Records Centre, 2018. North East Scotland Birds (1883-2010). Occurrence dataset: https://doi.org/10.15468/o1okcz accessed via GBIF.org on 2018-10-01

    34. OBIS (Ocean Biodiversity Information System),  2024. Global map of species distribution using gridded data. Available from: Ocean Biogeographic Information System. www.iobis.org. Accessed: 2024-11-22

    35. Record, 2017. RECORD Aves Data. Occurrence dataset: https://doi.org/10.15468/pudf3y accessed via GBIF.org on 2018-10-01.

    36. Rotherham Biological Records Centre, 2017. Rotherham Biological Records Centre - Non-sensitive Records from all taxonomic groups. Occurrence dataset: https://doi.org/10.15468/d3tufo accessed via GBIF.org on 2018-10-02.

    37. Sheffield Bird Study Group, 2017. Sheffield Bird Study Group (Yorkshire records). Occurrence dataset: https://doi.org/10.15468/ytwnad accessed via GBIF.org on 2018-10-02.

    38. South East Wales Biodiversity Records Centre, 2018. SEWBReC Birds (South East Wales). Occurrence dataset: https://doi.org/10.15468/qfainq accessed via GBIF.org on 2018-10-02.

    39. South East Wales Biodiversity Records Centre, 2018. Dr Mary Gillham Archive Project. Occurance dataset: http://www.sewbrec.org.uk/ accessed via NBNAtlas.org on 2018-10-02

    40. Staffordshire Ecological Record, 2017. SER Site-based Surveys. Occurrence dataset: https://doi.org/10.15468/h2yko0 accessed via GBIF.org on 2018-10-02.

    41. Staffordshire Ecological Record, 2017. SER Species-based Surveys. Occurrence dataset: https://doi.org/10.15468/q8qen3 accessed via GBIF.org on 2018-10-02.

    42. Staffordshire Ecological Record, 2017. Staffordshire Wildlife Trust Nature Reserves Inventory. Occurrence dataset: https://doi.org/10.15468/vhdows accessed via GBIF.org on 2018-10-02.

    43. Staffordshire Ecological Record, 2017. Stoke-on-Trent Environmental Survey results (1982-1984). Occurrence dataset: https://doi.org/10.15468/8gryb6 accessed via GBIF.org on 2018-10-02.

    44. Suffolk Biodiversity Information Service., 2017. Suffolk Biodiversity Information Service (SBIS) Dataset. Occurrence dataset: https://doi.org/10.15468/ab4vwo accessed via GBIF.org on 2018-10-02.

    45. The Wildlife Information Centre, 2017. Biological Recording in Scotland - Scotsman Wildlife Surveys. Occurrence dataset: https://doi.org/10.15468/t50yhv accessed via GBIF.org on 2018-10-02.

    46. The Wildlife Information Centre, 2017. LWIC - Local Patch Project. Occurrence dataset http://www.wildlifeinformation.co.uk/. Accessed via NBNAtlas.org/ on 2018-10-02.

    47. The Wildlife Information Centre, 2017. Natalie Harmsworth's Records (2010-2016). Occurrence dataset http://www.wildlifeinformation.co.uk/. Accessed via NBNAtlas.org/ on 2018-10-02.

    48. The Wildlife Information Centre, 2018. TWIC - Identification Workshops dataset. Occurrence dataset: https://doi.org/10.15468/pplu90 accessed via GBIF.org on 2018-10-02.

    49. The Wildlife Information Centre, 2018. TWIC Biodiversity Field Trip Data (1995-present). Occurrence dataset: https://doi.org/10.15468/ljc0ke accessed via GBIF.org on 2018-10-02.

    50. West Wales Biodiversity Information Centre, 2017. WTSWW Data: All Taxa (West Wales). Occurrence dataset: https://doi.org/10.15468/gaakk2 accessed via GBIF.org on 2018-10-02.

    51. Yorkshire Wildlife Trust, 2018. Yorkshire Wildlife Trust - Non-sensitive records from all taxonomic groups. Occurrence dataset: https://doi.org/10.15468/2razk5 accessed via GBIF.org on 2018-10-02.

    Citation

    This review can be cited as:

    Sweet, N. A. 2008. Larus marinus Great black-backed gull. In Tyler-Walters H. and Hiscock K. Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. [cited 22-11-2024]. Available from: https://marlin.ac.uk/species/detail/2210

    Last Updated: 13/10/2008