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2011 Mar 24The fishing of Ceryle rudis Linnaeus, 1758 (Alcedinidae: Coraciiformes, Aves) in Lake Tanganyika, 1758 (Alcedinidae: Coraciiformes, Aves)
Lake Tanganyika is frequented by numerous fish-eating birds, especially kingfishers. Our research was particularly interested in the magpie kingfisher, Ceryle rudis Linné, 1758. This study, conducted over a period of two months, from 21 June-19 July and from 19 August-16 September 2002, aims to analyze the magpie kingfisher fishery by considering the hours of fishing during the day, before and after noon. This bird fishes either from a perch or from a hover. This regularly observed behavior allows the bird to fish in
pelagic water, which is rare in other kingfisher species. This section distinguishes between direct dives, performed from perches, and dives made after hovering. The results show that out of a total of 583 dives, 324 or 55.6% were dives from perches, while the rest were from hovering. We found that Ceryle rudis is very active fishing until noon and less active in the afternoon. The average number of fish consumed per day by the bird was 9.3.