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♦ ¹VARIATION IN MAGELLANIC PENGUIN SPHENISCUS MAGELLANICUS DIET IN THE FALKLAND ISLANDS, K.R. THOMPSON, Marine Ornithology 21: 57-67 (1993)
♦ ²Diet of dusky dolphins, Lagenorhynchus obscurus, in waters off Patagonia, Argentina, Alonso, MK | Crespo, EA | Garcia, NA | Pedraza, SN | Coscarella, MA, Fishery Bulletin [Fish. Bull.]. Vol. 96, no. 2, pp. 366-374. Apr 1998
♦ ³Diet 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