Page 344 - Atlas Sea Birds Ver1

Table 1: Records of Cape Gannets breeding at different localities in Namibia and South Africa, 1648–2021. Also shown are annual totals
for seasons when values were available for all extant colonies, maxima observed at each locality and the % contribution of different
localities to the overall number breeding in 2021. Years refer to the first year in the split-year breeding season. ‘√’ signifies that breeding
occurred at a locality but the numbers were not ascertained

Hollams Bird Island Mercury Island Possession Island Bird Island, Lambert's Malgas Island Dyer Island

Namibia Ichaboe Island Halifax Island South Africa Bay Seal Island, False Bay Bird Island, Algoa Bay Overall Total
Year

1648 √
1687 √
1755 11710
1828 √ √ √ 0 0
1858 12000
1869 ?
1885 √ √
1901 0 √ √
1907 0
1912 1
1919 0
1928 0
1938 √
1956 0 9396 175116 0 19258 5915 25040 0 0 19092 253817
1959 27230
1967 5150 166600 0 16300 3590 31450 √
1969 2840 3040 28020 34090
1971 5000 √ 31800
1974 40730
1978 0 5696 69908 0 4357 5595 28168 0 0 45032 158756
1979 40730
1980 54330 3260 7090 30170 50610
1981 2060 49680 4100 7310 √ 52680
1982 3360 √ 2970 6650 32940 54750
1983 2380 46760 3540 5890 25510 52110 136190
1984 3600 56210 2380 9680 28570 0 49470 149910
1985 2290 40700 3530 8530 28200 1 50640 133891
1986 2480 √ √ 10780 39720 56670
1987 2360 49260 2740 13780 41580 56700 166420
1988 0 3280 55610 3100 10750 42200 62120 177060
1989 2930 58240 3040 10430 54320 56370 185330
1990 √ √ √ 9300 29690 59090
1991 √ √ √ 11430 44640 62960
1992 2760 25530 3160 10190 43280 61930 146850
1993 2720 31480 1400 10110 33000 72150 150860
1994 1620 √ 920 9370 49060 72000
1995 1990 31180 770 9230 51170 72000 166340
1996 1790 32660 730 10460 57570 √
1997 1430 23700 √ 10690 51490 70130 157440
1998 1360 19970 340 9690 52040 60970 144370
2000 √ √ √ 11230 49070 √
2001 1690 13270 400 9200 49710 96590 170860
2002 √ √ √ 9040 √ 84770

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