Page 251 - Atlas Sea Birds Ver1

Greater
Year Crested Caspian Roseate
Tern Tern Tern
1974
1976 c. 30
1977 0
1978 0 c. 40
1979 √
1980 ?
1981 √
1982 √
1983 √
1984 0 √
1985 √
1986 130 Aerial view of Bird Island, Algoa Bay (photo BM Dyer)
1987
1988 and the colony was > 80,000 pairs since 2001. Maxima
recorded for other species were 473 pairs of Kelp Gull in
1989 1755, 565 pairs of Greater Crested Tern in 2010, two pairs
1990 of Caspian Tern in 1924, and 295 pairs of Roseate Tern
1991 in 2010.
1992 0 112 References
1993
1994 Barnes KN. 1998. Important bird areas of the Eastern Cape. In:
1995 Barnes K (ed.) The Important Bird Areas of Southern Africa.
BirdLife South Africa, Johannesburg, pp. 197–218.
1996 152 Brooke RK, Cooper J, Shelton PA, Crawford RJM. 1982. Taxonomy,
1997 178 distribution, population size, breeding and conservation of
1998 180 the White-breasted Cormorant, Phalacrocorax carbo, on the
southern African coast. Le Gerfaut 72: 189–220.
1999 215 Cooper J. 1981. Biology of the Bank Cormorant, part 1: distribution,
2000 245 population size, movements and conservation. Ostrich 52:
2001 243 208–215.
2002 Cooper J, Brooke RK, Shelton PA, Crawford RJM. 1982.
Distribution, population size and conservation of the Cape
2003 72 Cormorant Phalacrocorax capensis. Fisheries Bulletin South
2004 60 Africa 16: 121–143.
2005 0 118 Cooper J, Crawford RJM, Suter W, Williams AJ. 1990. Distribution,
2006 47 155 population size and conservation of the Swift Tern Sterna
bergii in southern Africa. Ostrich 61: 56–65.
2007 0 153 Cooper J, Brooke RK, Cyrus DP, Martin AP, Taylor RH, Williams
2008 0 178 AJ. 1992. Distribution, population size and conservation of
2009 0 130 the Caspian Tern Sterna caspia in southern Africa. Ostrich
63: 58–67.
2010 565 295 Crawford RJM. 2009. A recent increase of swift terns Thalasseus
2011 200 105 bergii off South Africa – the possible influence of an
2012 0 120 altered abundance and distribution of prey. Progress in
Oceanography 83: 398–403.
2013 0 100 Crawford RJM, Cooper J, Shelton PA. 1982. Distribution,
2014 0 140 population size, breeding and conservation of the Kelp Gull
2015 0 120 in southern Africa. Ostrich 53: 164–177.
2016 0 183 Crawford RJM, Shelton PA, Cooper J, Brooke RK. 1983.
Distribution, population size and conservation of the Cape
2017 0 0 140 Gannet Morus capensis. South African Journal of Marine
2018 0 0 92 Science 1: 153–174.
2019 0 0 180 Crawford RJM, Williams AJ, Hofmeyr JH, Klages NTW, Randall
2021 RM, Cooper J, Dyer BM, Chesselet Y. 1995. Trends of
African penguin Spheniscus demersus populations in the
2022 20th century. South African Journal of Marine Science 16:
101–118.
Notes: Numbers of African Penguin increased from Crawford RJM, Dundee BL, Dyer BM, Klages NTW, Meÿer MA,
hundreds of pairs in the 1950s and 1970s to 5,376 pairs in Upfold L. 2007a. Trends in numbers of Cape Gannets
(Morus capensis), 1956/57–2005/06, with a consideration
2001. They then decreased to 1,437 pairs in 2022. Almost of the influence of food and other factors. ICES Journal of
110,000 pairs of Cape Gannet bred at Bird Island in 2005 Marine Science 64: 169–177.

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