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Summary
Dean, W. R. J. 1978. Life expectancy of the Cape Sparrow. Ostrich 49:16-20.
Cape Sparrows Passer melanurus ringed and recaptured at Barberspan Ornithological Research Station have a mean life expectancy of 1,09 years and a mean survival rate of 0,37. Survival and life expectancy are significantly different between males and females. Males have a life expectancy of 1,54 years after first capture and females have a life expectancy of 1,16 years after first capture. The estimated productivity is 3,54 young per pair per lifetime or 3,25 young per pair per breeding season.