TIMING OF LAYING BY GREATER KESTRELS FALCO RUPZCOLOZDES NEAR PRETORIA, SOUTH AFRICA

摘要: Summary Kemp, A. C. 1991. Timing of laying by Greater Kestrels Fulco rupicoloides near Pretoria, South Africa. Ostrich 62: 35–39. Laying dates for a population individually marked Falco rupicoloides, on grass- and croplands Africa, were determined 89 nesting attempts during 1975–1988. occurred in the austral spring between 23 July 11 November. was negatively correlated with rainfall previous summer positively winter preceding laying. Success fledging young significantly higher clutches laid before median date 1 September after seasons above average rainfall.