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♦ ¹Jackson, S. (1988). Diets of the white-chinned petrel and sooty shearwater in the southern Benguela Region, South Africa Condor 90, 20–28
♦ ²A. L. Batchelora & G. J. B. Rossa, THE DIET AND IMPLICATIONS OF DIETARY CHANGE OF CAPE GANNETS ON BIRD ISLAND, ALGOA BAY, Ostrich: Journal of African Ornithology Volume 55, Issue 2, 1984
♦ ³FEEDING ECOLOGY AND BODY SIZE DEPENDENCE ON DIET OF THE SOOTY SHEARWATER, PUFFINUS GRISEUS, IN THE NORTH PACIFIC, Kouzi SHIOMI and Haruo OGI, Proc. NIPR Symp. Polar Biol., 5, 105-113, 1992