, Robson Silva E Silva, Ariadne Prado, Breeding Season Diet of Scarlet Ibises and Little Blue Herons in a Brazilian Mangrove Swamp, Waterbirds: The International Journal of Waterbird Biology, Vol. 24, No. 1 (Apr., 2001), pp. 50-57
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Olmos et al. (2001) studied this question.
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