Abstract
The survival rates and mortality causes of both sexes of fifteen species of common British birds are empirically quantified and compared using ringing data collected by the British Trust for Ornithology. In the majority of species no significant differences are discernible between the survival of males and females, and differences in survival between species are much larger than differences between the two sexes of the same species. An analysis of the seasonal patterns of recovery for several species suggests that the breeding season and the winter are the two periods of high mortality for both male and female birds. These results are discussed in terms of recent work on reproductive strategies in birds and mammals.
Published Version
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