Page 192 - Atlas Sea Birds Ver1

Oosthuizen WH, Ryan PG, Taylor RH, Turpie JK. 2013b. Report Division of Sea Fisheries South Africa 43: 1–32.
South Africa’s coastal-breeding white-breasted cormorants: Sherley RB, Crawford RJM, de Blocq AD, Dyer BM, Geldenhuys
population trends, breeding season and movements, and D, Hagen C, Kemper J, Makhado AB, Pichegru L, Tom
diet. African Journal of Marine Science 35: 473–490. D, Upfold L, Visagie J, Waller LJ, Winker H. 2020. The
Crawford RJM, Randall RM, Cook TR, Ryan PG, Dyer BM, Fox R, conservation status and population decline of the African
Geldenhuys D, Huisamen J, McGeorge C, Upfold L, Visagie penguin deconstructed in space and time. Ecology and
J, Waller LJ, Whittington PA, Wilke CG, Makhado AB. 2016. Evolution 10: 8506–8516.
Cape cormorants decrease, move east and adapt foraging Shelton PA, Crawford RJM, Cooper J, Brooke RK. 1984.
strategies following eastward displacement of their main Distribution, population size and conservation of the
prey. African Journal of Marine Science 38: 373–383. Jackass Penguin Spheniscus demersus. South African
Lewis SEF, Turpie JK, Ryan PG. 2012: Are African penguins worth Journal of Marine Science 2: 217–257.
saving? The ecotourism value of the Boulders Beach colony. Tom DB, Crawford RJM, Makhado AB. 2024. Harvests of seabird
African Journal of Marine Science 34: 497–504. guano in the Benguela upwelling ecosystem. This volume.
Marnewick MD, Retief EF, Theron NT, Wright DR, Anderson TA. Underhill LG, Crawford RJM, Wolfaardt AC, Whittington PA, Dyer
2015. Important Bird and Biodiversity Areas of South Africa. BM, Leshoro TM, Ruthenberg M, Upfold L, Visagie J. 2006.
Birdlife South Africa; Johannesburg. Regionally coherent trends in colonies of African penguins
Makhado AB, Tom DB, Crawford RJM. 2024. Harvests of eggs of Spheniscus demersus in the Western Cape, South Africa,
African Penguins (Spheniscus demersus) in the Benguela 1987–2005. African Journal of Marine Science 28: 697–704.
upwelling ecosystem. This volume. Whittington PA, Crawford RJM, Martin AP, Randall RM, Brown M,
McInnes AM, Allan DG. 2011. Distribution, abundance and Makhado AB, Dyer BM, Upfold L, Harrison KHB, Huisamen
movements of the Grey-headed Gull Larus cirrocephalus in J, Waller L, Witteveen M. 2016. Recent trends of the Kelp
South Africa. Durban Museum Novitates 34:1–20. Gull (Larus dominicanus) in South Africa. Waterbirds 39
Province of the Cape of Good Hope. 1988. No. 23/1988. Official (Special Publication 1): 99–113.
Gazette 4524: 394–397. Williams AJ, Steele AK, Cooper J, Crawford RJM. 1990.
Rand RW. 1963. The biology of guano-producing seabirds. 4. Distribution, population size and conservation of Hartlaub’s
Composition of colonies on the Cape islands. Investigational Gull Larus hartlaubii. Ostrich 61: 66–76.

Smitswinkel Bay cliffs (photo BM Dyer) Wolfgat area (photo BM Dyer)

Pipes used by African Penguins for nesting at Seal Island, False Cormorants nesting at Cape Point (Photo BM Dyer)
Bay, 2012 (photo BM Dyer)

The lighthouse on Roman Rock (photo RJM Crawford) Boulders Bay (photo L Upfold)

186