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♦ ¹VARIATION IN MAGELLANIC PENGUIN SPHENISCUS MAGELLANICUS DIET IN THE FALKLAND ISLANDS, K.R. THOMPSON, Marine Ornithology 21: 57-67 (1993)
♦ ²THE DIET AND FORAGING BEHAVIOUR OF TWO PATAGONIAN CORMORANTS, G.E. PUNTA, J.R.C. SARAVIA & P.M. YORIO, Marine Ornithology 21, 1993, pp. 27-36
♦ ³FISHES IN THE DIET OF THE IMPERIAL CORMORANT PHALACROCORAX ATRICEPS AT PUNTA LOBERÍA CHUBUT, ARGENTINA, A.E. GOSZTONYI & L. KUBA, Marine Ornithology 26: 59–61
♦ ⁴Diet of the Humboldt penguin (Spheniscus humboldti) in northern and southern Chile, C. Herling, B. M. Culik, J. C. Hennicke, Marine Biology (2005) 147: 13–25