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♦ 1"Food and Feeding Biology of the South American Tern during the Nonbreeding Season", Marco Favero, M. Susana Bó , M. Patricia Silva R. and Carlos García-Mata, Waterbirds: The International Journal of Waterbird Biology Vol. 23, No. 1 (2000), pp. 125-129
♦ 2Diet of Neotropic cormorant (Phalacrocorax brasilianus) in an estuarine environment, V. Barquete, L. Bugoni, C. M. Vooren, Mar Biol (2008) 153:431443