Page 520 - 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
SoetendalsVlei. ‘√’ 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 Robben Island Caltex Oil Refinery Cape Town surrounds Theewaterskloof Dam
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 Rietvlei Century City Athlone Sewage Works Strandfontein Sewage Dyer Island Soetendals Vlei

1865 1
1925
1926
1927
1929
1932
1946 1
1949
1950
1951
1952
1953 1
1955
1957
1958
1959
1960
1961
1962
1963
1964
1966
1967
1968
1969
1970
1971
1972
1973 1
1974
1975 500
1976
1977 2 1 2 2
1978 2
1979 1
1980 3
1981
1982 1
1983
1984 20
1985
1986
1987
1988
1989
1990 1
1991 14 1 4

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