Page 236 - Atlas Sea Birds Ver1

2013 f √ 8 0
2014 f √ 31 0
2015 f √ 0
2016 f 155 0 8 163
2017 f 119 0 0 119
2020 e 0 600 0 0 0 600
2021 f 0 500 0 0 0 500
2022 f 0 824 10 0 0 834
a Except where otherwise indicated Crawford et al. (2009)
b McInnes and Allan (2011)
c Randall and Hosten (1983)
d Martin and Randall (1987)
e Martin (2020)
f AP Martin (unpubl.)
Notes: Since approximately year 2000 Grey-headed and Caspian Tern
Hartlaub’s Gulls have bred together in the same colony and
hybridized and it is not possible to accurately determine Bar Chatty Redhouse
how many nests of each species are present; therefore, Year None saltpans saltpans Total
nests in the colony were counted together. E.g. in 2020 at saltpans
the Chatty Saltpans colony there were a total of 600 nests, No. of pairs
1,019 adult Grey-headed and Grey-headed / Hartlaub’s 1982 9 a 9
Gull hybrids and 62 adult Hartlaub’s Gulls (5.7%) (Martin
2020). From 2020–2022 Greater Crested Terns bred in the 1983 25 a 25
same colony as the gulls (Martin 2020). 1984 7 a 7
The Redhouse Saltpans ceased operation in late 2018 1985 33 a 33
and dried out. They were filled with freshwater in 2022
1986 35 a 35
Greater Crested Tern 1987 58 a 58
1988 41 b 41
Chatty saltpans
Year No. of pairs 1989 38 b 38
2020 a 70 1990 41 b b 41
2021 b 479 1991 46 b 46
2022 b 219 1992 20 20
1993 7 b 7
a Martin. (2020) 1994 50 b 50
b AP Martin (unpublished information) 1995 0 b 0
Note: Greater Crested Terns first bred in the Swartkops 1996 40 b 40
Valley in 2020 with a mixed colony of Grey-headed and 1997 24 b 24
Hartlaub’s Gulls (Martin 2020). They bred at the same b
mixed colony in 2021 and 2022 (AP Martin unpublished 1998 13 13
information). 1999 23 b 23
2000 21 b 21
2001 1 b 1
2002 28 b 28
2003 0 b 0
2004 4 b 4

Redhouse Pan (photo AP Martin)

Kelp Gulls breeding at Port of Ngqura (photo AP Martin)

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