Page 521 - Atlas Sea Birds Ver1

Table 1: Numbers of Grey-headed Gulls (pairs) breeding at coastal sites in southern Africa, 1865–2022: a) Cunene River Mouth to
Soetendals Vlei (continued).‘√’ signifies that breeding occurred at a site but the numbers were not ascertained; ‘?’ that breeding may have
taken place

Namibia Shark Island, Lüderitz South Africa Caltex Oil Refinery
Year Cunene River Mouth Swakopmund Saltworks Swakopmund Sewage Walvis Bay Bird Paradise Bird Island, Lambert's Bay Wadrifsoutpan Malgas Island Marcus Island Jutten Island Schaapen Island Paarl Sewage Works Robben Island Rietvlei Century City Athlone Sewage Works Cape Town surrounds Strandfontein Sewage Theewaterskloof Dam Dyer Island Soetendals Vlei

1992 6 2 3 0
1993 25 0 0
1994 25 3 0
1995 1 1 11 0
1996 1 0 0
1997 1 0 2 1
1998 0 0
1999 0 0
2000 0 0
2001 0 3 0
2002 6 0 0
2003 0 0
2004 3 3 40 0
2005 0 0
2006 0 2
2007 0 0
2008 3 0
2009 1 0
2010 0 0
2011 1 8 0
2012 0 1 0 0 0 12 4 0 0 0 1 0 0
2013 0 0 0 0 0 5 2 0 0 0 0 0 0
2014 0 0 0 0 0 5 4 0 0 0 0 0 0
2015 0 0 0 0 0 0 4 0 0 0 0 0 0
2016 0 0 0 0 0 2 0 0 0 0 0 0
2017 0 0 0 0 0 20 0 0 0 0 0 0 0
2018 6 0 0 0 0 2 0
2019 0 0 0 0 0 4 0 0 0 0 0 0 1
2020
2021 0 0
2022 √

An immature Grey-headed Gull at Velddrif, 2012 (photo BM Dyer)

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