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Food Preferences and Feeding Habits of the Pied Kingfisher Ceryle rudis
Steinar A. Tjomlid
Ornis Scandinavica (Scandinavian Journal of Ornithology)
Vol. 4, No. 2 (1973), pp. 145-151
Stable URL: http://www.jstor.org/stable/3676115
Page Count: 7
You can always find the topics here!Topics: Birds, Animal digestion, Stomach, Freshwater fishes, Gastrointestinal secretions, Fish, Insect larvae, Arithmetic mean, Food intake, Body weight
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119 Ceryle rudis were collected in the period from January 1970 to August 1971 in Zambia near Namwala on the Kafue Flats, and their food intake analysed. The only insect eaten to an appreciable extent was Anisoptera larva, which amounted to 24.1% by number. The most important fish were Alestes spp., 16.9%; Barbus spp., 16.9%; and Ciclidae, 32.3%, by numbers. The digestive stages of the stomach contents, combined with field observations, revealed that the birds feed 4 times a day. They regurgitate the indigestible remains between each meal. The average daily food intake approximated to 18.4 grams, or 24.6% of the body weight. Two hand-reared birds had a daily food intake of 26.5% and 24% of their body weight during the last 15 days before independence. The average number of fish eaten per day per bird was 7.2, of which 44% were Ciclidae.
Ornis Scandinavica (Scandinavian Journal of Ornithology) © 1973 Nordic Society Oikos