Egyptian Goose (Alopochen aegyptiacus) Science Article 1
Egyptian Geese have increased in numbers in the Western Cape in recent decades, and they are considered agricultural pests in the Swartland region, the grain-producing area on the mainland adjacent to Dassen Island (Hockey et al. 1989). It is possible that traditional moult sites on the mainland have reached capacity, or have been subjected to disturbance.
L.G. Underhill, J. Kemper, P.A. Whittington & A.C. Wolfaardt, 2000 Marine Ornithology 28: 121-122 (2000)