|Scientific name||Larus ridibundus||Common name||Black-headed Gull|
|Population name||West Asia/SW Asia & NE Africa|
|Breeding range||W Russia, Central Asia||Non-breeding range||SW & Central Asia, Eastern Africa|
|Red List Category||Least Concern|
|Ramsar regions||Africa Asia Europe|
|CAF Action Plan|
|Publication||Start year||End year||Minimum||Maximum||Estimate quality||Notes||References||Actions|
|WPE 5||1987||1991||250,000||250,000||Expert opinion||[R519]|
|CSR 4||1987||1991||250,000||250,000||Expert opinion||[R519]|
|CSR 5||1987||1991||250,000||250,000||Expert opinion||[R519]|
|CSR 6||2008||2014||250,000||250,000||Best guess||[S8421]||[R519] [R1422]|
|CSR 7||2008||2014||250,000||250,000||Best guess||[S9140]||[R519] [R1422]|
|Publication||Start year||End year||Trend||Trend quality||Notes||References||Actions|
|CSR 4||1990||2000||STA||No idea||[R66]|
Population 1% level
- R519 - Perennou, C.P., Mundkur, T. and Scott, D.A. 1994. The Asian Waterfowl Census 1987-1991: distribution and status of Asian waterfowl. IWRB Spec. Publ. No. 24; AWB Spec. Publ. No. 86. Slimbridge, UK and Kuala Lumpur, Malaysia.
- 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
- R66 - BirdLife International Website 2002
- R1422 - Nagy, S., Alanazi, F., Almomen, A. Alsuhaibani, A, AlRashidi, M., Dereliev, S., Keijl, G. Ruiters, P. & Shobrak, M. 2014. Winter waterbird survey in the Kingdom of Saudi Arabia in January 2014. Wetlands International, Ede, The Netherlands.
- 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.
- 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. URL: http://iwc.wetlands.org/index.php/aewatrends
- T5115 - Wetlands International 2012. Trend 1993-2007: +2.4% p.a. ? Increase.
- T1504 - 898. Trend 1993-2007: +2.4% p.a. â€“ Increase.
- S8421 - Most recent maximum annual count total in SW Asia was 74,828 individuals in 2011. Overall, the sum of the site level 5-year-means was 105,311 in SW Asia for th eepriod of 2008 and 2012, but this has not included SA and OM. Nagy et al. (in prep.) counted 11,902 individuals at Sabkhat al Fasl and Tarut Bay and 333 along c. 7% of the Red Sea coast (equivalent to some 4,700 if extrapolated for the whole SA section of the Red Sea coast) in SA in Jan. 2014.. 5,760-6,222 individuals in Uganda in 2006-2007. Otherwise, totals from E Africa are under a thousand birds. These suggest that the estimate of Perennou et al. (1994) is still valid.
- T6420 - Most recent IWC trend based on 444 plots produced uncertain/fluctuating trend for 2003-2012: 0.9957Â±0.0186 (Nagy et al., 2014). However, the results should be treated with caution because in 20 out of 25 years, real counts formed less than 30% of the total accounting for missing values.
- S9140 - Most recent maximum annual count total in SW Asia was 74,828 individuals in 2011. Overall, the sum of the site level 5-year-means was 105,311 individuals in SW Asia for the period of 2008 and 2012, but this has not included SA and OM. Nagy et al. (in prep.) counted 11,902 individuals at Sabkhat al Fasl and Tarut Bay and 333 along c. 7% of the Red Sea coast (equivalent to some 4,700 if extrapolated for the whole SA section of the Red Sea coast) in SA in Jan. 2014.. 5,760-6,222 individuals in Uganda in 2006-2007. Otherwise, totals from E Africa are under a thousand birds. These suggest that the estimate of Perennou et al. (1994) is still valid.
- T7050 - Also stable in the long-term.
Copyright Wetlands International 2012 Citation: Wetlands International (). "Waterbird Population Estimates" . Retrieved from wpe.wetlands.org on