Population information

Order name Charadriiformes
Family name Laridae
Scientific name Larus ridibundus Common name Black-headed Gull
Population name W Europe/W Europe, W Mediterranean, West Africa
Breeding range N & W Europe, S Greenland Non-breeding range S & W Europe
Red List Category Least Concern
Ramsar regions Europe
Notes

Conservation Framework

Conservation framework Notes
AEWA
EUBD
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 1970 1990 5,600,000 7,300,000 [R69]
WPE 4 1990 2000 3,700,000 4,800,000 [S2292] [R63]
WPE 1 0 0 -1 -1
WPE 2 0 0 -1 -1
WPE 5 1990 2000 3,700,000 4,800,000 Expert opinion [R63]
CSR 4 1990 2000 3,700,000 4,800,000 Expert opinion [R63]
CSR 5 1990 2000 3,700,000 4,800,000 Expert opinion [R63]
CSR 6 1990 2013 2,750,000 3,550,000 Expert opinion [S8419] [R1361] [R1362] [R63]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1970 1990 INC [R69]
WPE 4 1990 2000 DEC [R63]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 1997 2007 STA Good [T5113] [R63] [R888]
CSR 4 1990 2000 DEC Poor
CSR 5 1997 2007 STA Good [T1500] [R63] [R888]
CSR 6 2000 2012 STA/DEC? Reasonable [T6418] [R1362] [R1361] [R1521] [R1381]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 20000
WPE 4 2006 20000
WPE 1 1994 20000
WPE 2 1997 20000
WPE 5 2012 42100
CSR 4 0 -1
CSR 5 0 -1
CSR 6 0 -1

References

  • R69 - BirdLife International/European Bird Census Council. 2000. European bird populations: estimates and trends. Cambridge, UK. BirdLife International Conservation Series No. 10.
  • R63 - BirdLife International (2004)b. Birds in Europe, population estimates, trends and conservation status. Cambridge, UK: BirdLife International. (BirdLife Conservation Series No. 12).
  • R888 - Wetlands International, 2012. Results of trend analysis undertaken for CSR5 2012, presented in Annex 4. http://www.unep-aewa.org/meetings/en/mop/mop5_docs/pdf/mop5_14_csr5.pdf
  • R1361 - BirdLife International, BTO, EBCC, CSO, IUCN, RSPB, SOVON, Wetlands International (in prep) Population and trend data provided to the European Red List of Birds Project funded by the European Commission. Digital dataset. BirdLife International, Cambridge, UK. Accessed on 31 July 2014.
  • R1362 - European Topic Centre on Biological Diversity (in prep) Population and trend data provided by the EU Member States in the frame of their reporting under Article 12 of the EU Birds Directive. Online fact sheets. European Topic Centre on Biological Diversity, Paris. URL: http://bd.eionet.europa.eu/activities/Reporting/Article_12/Reports_2013/Member_State_Deliveries. Accessed on 31 July 2014.
  • R1521 - SOVON in litt., 2014
  • R1381 - Nagy, S., Flink, S., Langendoen, T. (2014) Waterbird trends 1988-2012: Results of trend analyses of data from the International Waterbird Census in the African-Eurasian Flyway. Wetlands International, Ede.
  • R1549 - BirdLife International 2015. European Red List of Birds. Luxembourg: Office for Official Publications of the European Communities. http://datazone.birdlife.org/info/euroredlist
  • R1548 - Wetlands International (2017) Flyway trend analyses based on data from the African-Eurasian Waterbird Census from the period of 1967-2015. Ede, The Netherlands: Wetlands International. Temporary URL: https://www.dropbox.com/sh/r76f4eyuhzu65co/AADzzQkhySsUDsmwFJUcHs91a?dl=0

Notes

  • S2292 - 64: Breeding population in relevant countries 1,244,000-1,600,000 pairs (3,730,000-4,800,000 individuals). For populations over 2 million birds, Ramsar Convention criterion 5 (20,000 or more waterbirds) applies.
  • T5113 - Wetlands International 2012. Trend 1992-2007: 0.0% p.a. ? Stable. BirdLife International 2004b: Suffered moderate decline during the 1990s following substantial increase between 1970 and 1990.
  • T1500 - 898. Trend 1992-2007: 0.0% p.a. – Stable. 64: Suffered moderate decline during the 1990s following substantial increase between 1970 and 1990.
  • S8419 - Midwinter counts account for c. 1,000,000 birds. However, the latest estimate of the breeding population from the above mentioned countries is 861,550-1,074,851 pairs mainly from the period of 2000-2013 (European Topic Centre on Biological Diversity, in prep., BirdLife International et al., in prep.). Based on BirdLife International (2004), an additional 53,250-105,950 pairs are likely to be in HR, CZ, FO, RS and ME. This yields a total of 914,800-1,180,801 pairs, i.e. 2,750,000-3,550,000 individuals and this is proposed to replace the current estimate of 3,700,000-4,800,000 pairs.
  • T6418 - Based on IWC count data, the long-term trend shows a stable, but the short-term one shows moderate decline (Nagy et al. 2014) or moderate decline for both period (SOVON in litt., 2014). However, the overall trend based on breeding numbers from AT, BE, CH, DE, DK, EE, ES, FI, FR, GL, HU, IE, IS, IT, LT, LV, NL, NO, PL, PT, SE, SI, SJ, SK and UK (European Topic Centre on Biological Diversity, in prep., BirdLife International et al., in prep.) suggests a large decline (0.9821-0.9902) between 1980-2012 and a stable or rather fluctuating (0.9832-1.0178) trend between 2000-2012 and the latter is adopted here.
  • S8972 - 915,655-1,185,811 pairs
  • T7048 - Significant long-term decline since the 1980s based on both breeding and wintering numbers.



Copyright Wetlands International 2012

Citation: Wetlands International (). "Waterbird Population Estimates" . Retrieved from wpe.wetlands.org on