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Summary
Hustler, K. & Howells, W. W. 1986. A population study of Tawny Eagles in the Hwange National Park, Zimbabwe. Ostrich 57: 101–106.
Tawny Eagle Aquila rapax breeding success has been monitored in the Hwange National Park, Zimbabwe from 1973–1984. There were 1044 breeding pair years with 640 chicks reared; an average of 0,61 chicks/breeding paid year. The average number of pairs breeding each year was 72,4%. Thirty-one percent of all breeding attempts failed; most during nest-building (59%). Rainfall in the latter part of the rainy season appeared to influence early and late laying pairs. Two-egg clutches were most common (76%) and 65% of all one-egg clutches laid failed to produce chicks. Several factors which may influence breeding success are discussed.
