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of the Crowned Cormorant Phalacrocorax coronatus. Le strategies following eastward displacement of their main
Gerfaut 72: 3–30. prey. African Journal of Marine Science 38: 373–383.
Crawford RJM, Shelton PA, Cooper J, Brooke RK. 1983. Hagen, C. 2022. De Hoop for Penguins. African Birdlife 10 (1): 67.
Distribution, population size and conservation of the Cape Hagen, C. 2023. They’re breeding again. African Birdlife 12 (1): 70.
Gannet Morus capensis. South African Journal of Marine Hagen, C. 2024. After the honey badger, penguins return to De
Science 1: 153–174. Hoop. BirdLife South Africa Newsletter. July 2024 p. 11.
Crawford RJM, Dyer BM, Cordes I, Williams AJ. 1999. Seasonal Makhado AB, Braby R, Dyer BM, Kemper J, McInnes AM, Tom D,
pattern of breeding, population trend and conservation Crawford RJM. 2021. Seabirds of the Benguela ecosystem:
status of Bank Cormorants Phalacrocorax neglectus off utilisation, long-term changes and challenges. In: Mikkola
southwestern Africa. Biological Conservation 87: 49–58. H (ed.) Birds - Challenges and Opportunities for Business,
Crawford RJM, Tree AJ, Whittington PA, Visagie J, Upfold Conservation and Research. InTech Open, London, UK,
L, Roxburg[h] KJ, Martin AP, Dyer BM. 2008. Recent 51–70.
distributional changes of seabirds in South Africa: is climate MacLeod JGR, Martin J, Uys CJ. 1960. Greyheaded Gulls and
having an impact? African Journal of Marine Science 30: spoonbills in the Bredasdorp area. Ostrich 31: 80. Province
189–193. of the Cape of Good Hope. 1988. No. 23/1988. Official
Crawford RJM, Whittington PA, Martin AP, Tree AJ, Makhado AB. Gazette 4524: 394–397.
2009. Population trends of seabirds breeding in South Africa’s Rand RW. 1963. The biology of guano-producing seabirds. 4.
Eastern Cape, and the possible influence of anthropogenic Composition of colonies on the Cape islands. Investigational
and environmental change. Marine Ornithology 37: 159–174. Report Division of Sea Fisheries South Africa 43: 1–32.
Crawford RJM, Altwegg R, Barham BJ, Barham PJ, Durant JM, Shaughnessy PD, Shaughnessy GL. 1978. The Jackass Penguin
Dyer BM, Geldenhuys D, Makhado AB, Pichegru L, Ryan colony at Seal Island in Mossel Bay. Cormorant 5: 27–28.
PG, Underhill LG, Upfold L, Visagie J, Waller LJ, Whittington Shelton PA, Crawford RJM, Cooper J, Brooke RK. 1984.
PA. 2011. Collapse of South Africa’s penguins in the early Distribution, population size and conservation of the Jackass
21st century: a consideration of food availability. African Penguin Spheniscus demersus. South African Journal of
Journal of Marine Science 33: 139–156.
Marine Science 2: 217–257.
Crawford RJM, Dyer BM, Geldenhuys D, Makhado AB, Randall Underhill LG, Crawford RJM, Wolfaardt AC, Whittington PA, Dyer
RM, Upfold L, Visagie J, Waller L. 2012. Trends in numbers BM, Leshoro TM, Ruthenberg M, Upfold L, Visagie J. 2006.
of crowned cormorants in South Africa, with information on Regionally coherent trends in colonies of African Penguins
diet. African Journal of Marine Science 34: 411–424.
Crawford RJM, Randall RM, Whittington PA, Waller LJ, Dyer BM, Spheniscus demersus in the Western Cape, South Africa,
Allan DG, Fox C, Martin AP, Upfold L, Visagie J, Bachoo 1987–2005. African Journal of Marine Science 28: 697–704
S, Bowker M, Downs CT, Fox R, Huisamen J, Makhado Whittington PA. 2004. New breeding locality for crowned
AB, Oosthuizen WH, Ryan PG, Taylor RH, Turpie JK. 2013. cormorant. Koedoe 47: 125–126.
South Africa’s coastal-breeding white-breasted cormorants: Whittington PA, Crawford RJM, Martin AP, Randall RM, Brown M,
population trends, breeding season and movements, and Makhado AB, Dyer BM, Upfold L, Harrison KHB, Huisamen
diet. African Journal of Marine Science 35: 473–490. J, Waller L, Witteveen M. 2016. Recent trends of the Kelp
Crawford RJM, Makhado AB, Whittington PA, Randall RM, Gull (Larus dominicanus) in South Africa. Waterbirds 39
Oosthuizen WH, Waller LJ. 2015. A changing distribution of (Special Publication 1): 99–113.
seabirds in South Africa – the possible impact of climate Williams AJ, Steele AK, Cooper J, Crawford RJM. 1990.
and its consequences. Frontiers in Ecology and Evolution 3: Distribution, population size and conservation of Hartlaub’s
10, 1–10. Gull Larus hartlaubii. Ostrich 61: 66–76.
Crawford RJM, Randall RM, Cook TR, Ryan PG, Dyer BM, Fox R, Williams AJ, Ward VL, Underhill LG. 2004. Waders respond
Geldenhuys D, Huisamen J, McGeorge C, Upfold L, Visagie quickly and positively to the banning of off-road vehicles from
J, Waller LJ, Whittington PA, Wilke CG, Makhado AB. 2016. beaches in South Africa. Wader Study Group Bulletin 104:
Cape cormorants decrease, move east and adapt foraging 79–81.

Cape Mountain Zebra (Equus zebra zebra) share De Hoop Nature Reserve with seabirds that breed within it (photo RJM Crawford)

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