Page 177 - Atlas Sea Birds Ver1
P. 177

Numbers (pairs) of different seabird species breeding at Robben Island, 1949–2022


                             African   Penguin  Cormorant  Cormorant  White-  Cormorant  Cormorant  Gull  Gull  Grey-  headed Gull  Tern  Tern
                    Year              Cape    Bank      breasted   Crowned   Kelp   Hartlaub's       Greater   Crested   Caspian


                    1949                                         √                10
                    1950                               √                          √
                    1951                               √                          √                  √
                    1952                                                          √                  √
                    1953                                                         400        1        √
                    1956     0        0                                          20+
                    1960                                         55              1000               c. 600
                    1963                                                          √
                    1968                                                         229
                    1970                                                         301                min 75
                    1971                                                         1102
                    1972                                                          66
                    1973                                                         225
                    1974                                                         2225                133
                    1975                                         √               298                 √
                    1976                                         50              443                 200
                    1978              0       64                                 150
                    1979              0       73                 41              4309                350
                    1980              0       59                 68              3599                906
                    1981              0                                          970
                    1982              0       72
                    1983     9        0                                  0
                    1984     24       0                                  0       500                1250
                    1985     103      2       97                         0       500
                    1986     227      0       83                         0                          2252
                    1987     476      0       89                319      0       2738               1376
                    1988     849      0      108                405      0       2231                845
                    1989     829      0      107                355      0       3835                299
                    1990    1278      0      134                323      0       3062                690
                    1991    1879      6      131                206      0       941        1        956
                    1992    2027      4      108                300      0       1405       2       1458
                    1993    2176      0      115       0        317      0       936        0       2382
                    1994    2799      0      100       0        261      0       1839       3       1421
                    1995    2279      0       73       0        268      0       2999       1       1613
                    1996    3097      0       89       0        290      0       2165       0        20
                    1997    3336      0      106       0        253      0        0         0        0
                    1998    3467      0      104       0        176      0        2         0       1138
                    1999    4399      0      101       0         87      0       1569       0        0
                    2000    5407      0      120       0         50      4        1         0        0
                    2001    6427      3       68       0        100      15       0         0        535
                    2002    7099      0       65       0         66      50      664        0       1500
                    2003    5968      0       85       0         66      80      1550       0        39
                    2004    7798     166      99       2        132      63      1172       3        0
                    2005    7152     379      61       1         99      167      0         0        3
                    2006    5868     616     136       0        138      274      21        0        1
                    2007    5935     1658    121       0         42      494     1915       0       4785      0
                    2008    4215             118       0         35      652     3243       3       10200     0
                    2009    2415     1735    106       0         74      751     1300       1       12986     0
                    2010    2628     1929    114       0         58      978                0       7770      1
                    2011    1817     983     147       0         93     2509     2835       8       5991      1
                    2012    1669     2166     93       0         69     1399     1100       4       5350      1
                    2013    1364     918     125       0        106     1251     1046       2       6000      1
                    2014    1016     741      64       0         46     3395     1300       4       8200      1
                    2015    1216     1178     56       0        120     1538     1419       4       7600      1
                    2016    1355     1401     63       0        156     1920     1735       2       3326      1
                    2017    1440     1374     54       0        125     1676      0         0       2000      1
                    2018    1389     766      38       0        130     2069     1744       2       3950      1
                    2019    1190     682      30       0                2829     3229       4                 0
                    2020                                                                            3497
                    2021    1007              39                 8       52
                    2022     991                                                             √


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